fix some picking issues

Change-Id: Ia0607e1323ba89139f04209019228913ab0a1bc9
some fixes for andriod

Change-Id: I53bd827748a3ee2bf289136d8acd35d70e168588
some fixes for andriod

Change-Id: Id8ae123282a5d0c5c4d34a0a8c83877a56d5a644
remove some old code

Change-Id: I6def6b8a9f141c22c4497f8956f8e4a7e7c4b707
some fixes for andriod

Change-Id: I97eadc88c1737ba8b474e6786e8c1017b2cb0206
more andriod glew changes

Change-Id: I1bf7d985cdbde94db3990e40cb314ff6d2a41e38
more andriod glew changes

Change-Id: If27d884e240e7e47c592bdf5ed85a269fd05fa07
many changes to support glew and android

Change-Id: I52ea4f3f003436fa002ea86962153d5ea4cb532a
many changes to support glew and android

Change-Id: Ia4a6ecb86c53582349e7631b376cf739cd31c27e
many changes to support glew and android

Change-Id: I67fbaa1ed24471d4b0fd303fb007ad7350768f30
Merge remote-tracking branch 'origin/master' into opengl2-module

Conflicts:
	Rendering/ContextOpenGL2/module.cmake

Change-Id: I0d071e54d76951298a55585b442991c372aa1c6c
first working in quotes android app

Change-Id: Iad2645d63cc51f36130ca39d7353e1c2fc6d7a65
first working in quotes android app

Change-Id: I1f0c7f122c21269eb3bb0d91b5f2f19491c4990c
Merge branch 'opengl2-module' of https://github.com/cryos/VTK into opengl2-module

Change-Id: Ied9dc84e71f4e3cfae0f3c471357153a6abfc449
comment out more modukles by default

Change-Id: I5c4f33ab0ca24dd4d083bacc03d5da07257c02eb
some warning fixes and minor cleanups

Change-Id: Ic1ca0e6a7e2b989250022382cf59960fd8da9ddf
fix some more warnings

Change-Id: Ibae5a091f02c15ea6fc047f01e3a9be47e1cbaf1
fix some more warnings

Change-Id: Ibd35dfbd8d21170007e87094b67e551379556e45
make vtkOpenGLTexture use vtkTextureObject

Change-Id: I1edde97d85741909ebae51652fdfd266f50e036f
convert depth peeling to use more texture objects

Change-Id: Ib626df6691d1871851edf853f1463bd954233201