Changes QSA 1.2.2

QSA 1.2.2 is a patch release, containing mostly bug fixes. It maintains both
forward and backward compatibility (source and binary) with QSA 1.2.1


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Interpreter/Language:

  * Bugfix: Calling a slot with signature (int) now reports an error if
            a string that is not a numeric string, is passed as argument.

  * Bugfix: instanceof operator did not work for objects created with
            QSObjectFactory

  * Bugfix: Scripts containing "0++" would crash.

  * Bugfix: Several memory leaks.

  * Bugfix: Throwing an execption while evaluating the condition of an
            if statement, would cause a crash.
  
  * Bugfix: Setting a script function to null would cause an assert.

  * Bugfix: Using the with node on a non-object, such as a number, would cause 
            a crash.

  * Bugfix: Number parsing is now always based on C locale.

  * Bugfix: Recursively calling slots from scripts would sometimes cause a crash.

  * Bugfix: Calling a slot with signature (QStringList) failed when
            passed an empty array.

  * Bugfix: Slots in base classes where shadowed and unavailable from scripts.

  * Bugfix: Calling a slot with signature (QVariant) failed when a QObject *.
            is passed as argument.

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QSWorkbench:

  * Bugfix: QSWorkbench leaked memory.

  * Bugfix: QSWorkbench would sometimes crash on mac, due to a bad image
            reference.

  * QSWorkbench now stores its window state between runs.

  * QSWorkbench now supports translation.


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Build System:

  * Added -release and -debug build options to override default settings.

  * Improved buildsystem for Mac OS X.
 
  * Compiles with -no-ide

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QSEditor:

  * Bugfix: Completion would cause a crash when typing "." in an empty script.

  * Bugfix: (x. and {x. now opens completion for x.


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QSProject:
 
  * Bugfix: isRunning() would sometimes report true after an error.


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QSUtilFactory:

  * Bugfix: Process.execute would sometimes fail if the program name contained
            spaces.

  * Bugfix: Process.execute() would sometimes fail if the stdin parameter was used.

  * The Process class can now be used from any thread.