Another set of small mods to fix the MacOSX build.


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 - improvements in HypoTestInverter (better interpolation + plot with bands)  + Coverity fixes 
 -  new version of HistFactory from Kyle adding FlexibleInterpvar


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Don't update the display implicitly when attaching: want to update display often even if already attached, and this would trigger two updates. Better ask for an update explicitly but once.
When having read input there's no point to update the prompt - the prompt should have been shown already anyway.
This considerably reduces the amounts of re-draws and moves.


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  - In TPacketizer and TPacketizerAdaptive, fix an issue with counter updating when a number
    of events to be processed is specified (it was working up to a certain number of files and
    then it was getting screwed up).
  - In TPacketizerAdaptive, fix an issue with the option 'ForceLocal' on 'file:///' URLs.
  - In TProofPlayer, optimize two conditional scopes.
  - In TProofPlayerLite, make sure that the Progress timer is stopped when issuing STOP.


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  Import Xroot version 3.0.4.
  See net/xrootd/src/xrootd/docs/ReleaseNotes.txt for a detailed description of the
  changes and fixes wrt to version 3.0.3 .


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The last xrootd-related updated in configure was not needed.


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Add Fatal error message if the output file of the TFileMerger (and hadd) is deleted prematurely due to a large TTree


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  o  RooDataSet

     - Introduce pool-based memory allocation scheme

     - In ctor for composite datasets with Link() ensure that 
       order of observables is preserved to allow use of assignFast()
       

  o  RooRealSumPdf

     - Use getNorm() in expectedEvents() rather than createIntegral()


  o  RooAbsCollection

     - Do no allocate hash tables by default

     - Introduce contents claim counter to counter 'foreign' ownership
       claims of contents (needed for RooAbsOptTestStatistic::setData()
       support)

     - If collection is owning, only delete contents if claim count is also zero

     - In snapshot() raise hash table threshold from 100 to 1000


  o RooRefCountedList

     - Disable hash tables by default


  o RooStudyPackage

     - Make study package own clone of incoming workspace

     - Implement copy ctor


  o RooAbsTestStatistic

     - Implement 'master' setData() method. Forward to setDataSlave()
       of self for monolithic likelihoods or forward data components
       to likelihood components in case node is SimMaster. If data
       is not fast-splittable, execute slow split.


  o RooAbsData

     - Implement 'live check' to be able to conclude if a given dataset
       pointer points to a live or dead object

     - Claim contents of _vars through new claim mechanism. Release
       in dtor, allow _vars to delete contents if claim count is zero

     - Add concept of owned component datasets to support fast-splitting
       of dataset

     - Add method canSplitFast() that indicate if fast split is available
       (only possible if dataset was created as composite)

     - Add method getSimData() that retrieves pointer to component
       RooDataSet representation for a given index state


   o RooObjCacheManager

     - Add static mechanism that allows to deleted cached observables lists used for
       cache optimization triggers to be deleted on a sterilize() action. This
       is useful on toy studies with setData() operation, that would otherwise
       collect very large lists of observable clones during the toy cycle.


   o RooAbsPdf

     - Set contraint term to ADirty to avoid synchronization problems when using
       setData() in the likelihood


   o RooAbsArg

     - In clone operations set hash table threshold at 1000 nodes

     - In getObservables() use pass-by-value iterators rather than heap iterators
       to making this faster. Also make getObservables() non-virtual, as it is in
       fact not overloaded in any subclass (anymore). Also remove looping over
       branch nodes to call getObservablesHook() as no class implements method
       anymore.

   
   o RooAddition

     - Implement a setData() method that forwards to its components. Allows transparent
       operation of setData() on likelihood objects with constraint terms


   o RooLinkedList

     - Add method that returns iterator by value (simply forwards to similar implementation
       in RooLinkedList)


   o RooSimGenContext   

     - Move calculation of fraction table from ctor to dedicated updateFraction() method

     - Before each generation sequence call updateFractions() so that multi-generation
       sequence are robust against parameter changes between calls

     - In createDataSet() always make a composite dataset if the index is present, as this
       allows faster use in toymc operations


   o RooAbsOptTestStatistic

     - Initialize all variables in default ctor

     - In dtor and ctor handle ownership of dataset observables, on which we put a claim
       (i.e. we need to delete contents if the test statistics survives the dataset)

     - Reimplement existing setData() as setDataSlave(), and add claim management on
       dataset observables. When attached new data to function, request that object caches
       clear full content in sterilize() operation to avoid buildup of cache objects in
       long toy runs.

     - In setData() adjust event count of test statistics, for correct functioning of extended
       terms after update


   o RooArgSet

      - In ctor for list and a single object, only add object if not already in list
        (is already checked, but new procedure preserves order of list elements in case
         object was already present)

   o LinkDef

      - Add list<RooAbsData*> and map<string,RooAbsData*> to support streaming of composite datasets


   o RooAbsStudy

      - Implement clone method to support polymorphic array cloning

 
   o RooAbsReal

      - Add interface method setData() 


   o RooProfileLL

      - When storing coordinates of absolute minimum, store only those that are non-constant.
        Otherwise option to restart each minimization from known absmin may alter constant
        parameters


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Extend suppression file for more zlib intentional uninitialized memory use and for new TString implementation and remove old TString implementation.  Add one more X11 suppression


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This patch fixes the problem reported by Jan at
https://savannah.cern.ch/bugs/?83017


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Allow to change the background color with the new (modern) style (instead of using the default frame background color)


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29601, 29602 (uninitalized data member)


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Fix a side effect of changes for the new GUI style when changing the background color (was always the default frame color)


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r39708 used the wrong criterion: it doesn't matter whether ESC is pending but whether something has been read ahead (i.e. is buffered).
If it is, select() will not succeed, so we must flush the characters that have been buffered.


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Properly recognize a TClonesArray data member even if the requested type was a typedef (to TClonesArray) that is in a namespace (for example edm::Event::ContaierType)


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