test
build edit activity
Merge pull request #3 from cllin/build_camera_activity_1

build camera activity
Merge pull request #4 from cllin/edit_activity_2

build edit activity
update gitignore(add project.properties)
goose
update ignore files
gallery_with_grid_view
delete unnecessary files
refactor, pass size into adapter.
change to use ArrayAdapter
add mPaths
update ignore files
update ignore files
set num of columns in java code
remove codes about cameraActivity
fix conflicts
delete unused file
should not delete CameraActivity
fix NPE