refactor exporting task
New song book generating with differet font and page number
change itignore.
Suppoer convert xml to pdf directly instead of passing a songbook class
 * Remove Javadoc
 * Remove .DS_Store. We are also ignore it with .gitignore
Songbook sharinv via email
adb helper script
Change iCeeNee to QCeeNee
Organize element in PDF file.
Add custom font: archisio, helveticaneucebold
Set export song book name via a final property of Song Activity class to re-use this name
font files
rename prj to QCeeNee
 * Refactor MyHttpServer to start/stop server more easily
 * Start http server when start to sync and stop once done to avoid having multi phone running server at a time that can lead to wrong phone detection
About Dialog
* Use delegation to handle syncing event
* Fix song book filter crash
* Improve memrory optimization
* Store information in dedicated AppInfo class
* Change the way we handle menu clicking. Check/Set currentActivity as a String instead of dynamically check with instance of. At the same time, this fix some crash issue related to menu
* Add static upload.html for sync server