Correction of possible memory leaks in StitcherActivity class.
Merge branch 'master' of https://github.com/NicolasThierion/panandroid.git
Correction of the basic stitching process (using high level
functionality of OpenCV bad performance but functional) :
- Folder and snapshots path are now pass through arguments of JNI
function.

TODO : See stitching pipeline on OpenCV docs with stitching_detailed.cpp
sample in order to accelerate things.
It seems that stitching pipeline needs the entire set of pictures in
order to calculate SIFT matrix. (Read abstract Automatic Panoramic Image
Stitching using Invariant Features (ijcv2007.pdf => Google))
I used this sample extract from our presentation for test stitching
process.
CaptureView nows draw a cubic skybox
Merge remote-tracking branch 'origin/JSONCreate'
Merge remote-tracking branch 'origin/master'
CaptureActivity displays good.
Merge remote-tracking branch 'origin/master' into SettingCamera

Conflicts:
	src/fr/ensicaen/panandroid/capture/CameraActivity.java
	src/fr/ensicaen/panandroid/capture/CaptureActivity.java
	src/fr/ensicaen/panandroid/capture/Snapshot.java
Added takePicture into CameraActivity