Some more end-of-line characters fixed
Removed Native App project until fixed in branch

nativeAppBuilding project doesn't work anymore. Talked with Severin and
Wolfgang, agreed to remove the project from the master branch until we
re-add it again once it's finished and working again.

What's NOT been done:
Remove all traces of NativeApp from Java projects including tests. I'm
not yet sure what to remove there, but it doesn't hurt because the code
either is never executed and the tests, if any, work too.

This step was taken as a precauting because soon the GSoC will start
again and we shouldn't have any projects in the master branch that
cannot be successfully run.

Conflicts:
	nativeAppBuilding/src/readme.txt
Removed NativeAppAct., had to refactor FullParser

* Removed NativeAppActivity
* Because I removed the NativeAppActivity I had errors in the project
  and tests, but not only in the native app tests but also in the XML
  Serializer and Parser Tests.
  NativeAppActivity was abused as a global place to get a Context from.
* Refactored FullParser to only contain static methods and gave it a
  private constructor.
* Moved a function from FullParser to new class XmlTestUtils because it
  was only used there. Class is package private (default accessibility
  modificator) because it's only used and meant to be used inside the
  XML test package.

Conflicts:
	catroid/src/org/catrobat/catroid/content/bricks/PlaySoundBrick.java
	catroid/src/org/catrobat/catroid/content/bricks/SetCostumeBrick.java
	catroid/src/org/catrobat/catroid/io/SoundManager.java
	catroid/src/org/catrobat/catroid/io/StorageHandler.java
	catroid/src/org/catrobat/catroid/stage/NativeAppActivity.java
	catroid/src/org/catrobat/catroid/stage/StageListener.java
	catroid/src/org/catrobat/catroid/xml/parser/FullParser.java
	catroidTest/src/org/catrobat/catroid/nativetest/content/brick/SetCostumeBrickTest.java
	catroidTest/src/org/catrobat/catroid/nativetest/content/sprite/SoundManagerTest.java
	catroidTest/src/org/catrobat/catroid/nativetest/io/StorageHandlerTest.java
	catroidTest/src/org/catrobat/catroid/test/xml/FullParserTest.java
	catroidTest/src/org/catrobat/catroid/test/xml/ReflectionTest.java
	catroidTest/src/org/catrobat/catroid/test/xml/SerializerTest.java
	catroidTest/src/org/catrobat/catroid/test/xml/XmlTestUtils.java
Excluded Utils class from AssertionTest

Conflicts:
	catroidSourceTest/src/org/catrobat/catroid/test/code/CheckForAssertionsTest.java