added shaders to example project, moved ejecta.js to assets root in accordance to copyFiles to cache refactor
syntax fixes, update to example project that was no completed by asset copy refactor
Major update and bug fixes

- Added latest JNI libs from Ejecta-X
- Added GLES2.0 require to Android Manifest
- Removed deprecated code in test index.html
- Removed unnecessary Ejecta Activity file
- Refactored wizCanas is now regular view not Activity
- Refactored message system no longer requires intents for Activity
removed unnecessary plugin xml additions
copied example source to plugin source folders, removed old res folder, removed Activity file from plugin.xml
Merge pull request #7 from aogilvie/refactor/activity-restructure

Refactor/activity restructure
Fixed memory leak in __triggerMessageEvent.
Merge pull request #8 from jrouault/fix/messagingLeak

Fixed memory leak in __triggerMessageEvent.