Update beta version to 7.36.154.7
Tizen extensions: tutorial variants for C and C++
Merge pull request #134 from rtxm/master

Writing Tizen Extensions: distinct tutorials for C and C++
Fix instructions for migrating to Crosswalk 5

The old instructions were incorrect if migrating a
Cordova 3.4 app to Crosswalk 5. Switch to using "cordova build android"
instead of calling Ant directly, and add a note about extra
Android permissions required for Crosswalk 5.