Merge pull request #2 from victor4collabora/master

Social application init
make executable
insecure downloads considered harmful
hook up Gradle build for notxw_social
add more build bits to example
modularize
Implement swipe to change tab, removing auto-hiding tabs
Move old java_social (a previous attempt at notxw_social) out of the way
Fix menu drawer button visibility

This regressed while factoring out the lists view into a separate
component.
add some utility Makefile targets for testing and releases
Merge pull request #3 from victor4collabora/master

Endless scrolling for RecycleView, and basic interface for FPS measurement
Don't redundantly install platform-specific APKs
Revert "Implement swipe to change tab, removing auto-hiding tabs"

This reverts commit 1816c4b47a269f6495b5ed9c42c8e0cd89f080bc.
reinstate tab switching
Don't simulate network lag for initial load of Social
Remove redundant code
Use the same colour coding for the graph as for the pseudo-histogram
Discard samples older than 5 seconds for graphing and statistics purposes

Previously, we incorrectly included them when calculating the standard
deviation.
Merge pull request #4 from victor4collabora/master

Added Fps Graph View and Dummy Settings Screen and Swipe-to-dismiss
Starter: log the elapsedRealtime() so we can correlate with Android apps

elapsedRealtime() is useless for Crosswalk apps, whose time base
for performance timestamps is seconds since the epoch, but it's the
more appropriate version for Android apps.