compile.sh: add "jni" argument

the goal is to build vlc + libvlcjni only.
This is very useful if nothing has changed in contribs/configure and when using eclipse for java.
remove unused import
fix subtitle default track
-1 if the id of the "disable" subtitle track.
An init value of -1 ignores the default track of the media.
Code consistency
Util: hack to allow missing app resources build
Thumbnail: fix infinite retries + simplify

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>
Fix warning about Log
add dependencies of libgnutls
relax version checking for 64bits versions of NDK
Allow x86_64 NDK
Bump tested HASH

This will bring the newer GnuTLS for everyone
BrowserActivity: fix EmptyStackException
Fix typo in variable name
Get the path to cross compilers correctly
Check for the number of jobs to run on OS X as well

Signed-off-by: Rafaël Carré <funman@videolan.org>
Build extra tools required for building contribs

This allows building contribs out of the box on OS X.

Signed-off-by: Martin Storsjö <martin@martin.st>
UI: introduce ExpandableLayout
add WheelView from http://code.google.com/p/android-wheel/
UI: replace speed/sleep/jump menu & dialog by a new alertdialog
UI: rework of SpeedSelector