Build TeclaNext-build-2013060801.apk

Fixed #288
Added HUD layout updates on status bar visibility change.
Created a class to encapsulate highlighter and HUD.
Encapsulated highlighter and HUD in TeclaVisualOverlay class.
Merge branch 'issue-243' into issue-238
Fixed conflict from merging issue-243.
Merge pull request #289 from k22mak/develop

Build TeclaNext-build-2013060801.apk
Merge pull request #290 from ericwan78/issue-243

fixes #243
Merge pull request #291 from ericwan78/issue-238

fixes #238
Merge branch 'develop' of https://github.com/idrc/tecla-framework into issue-266