Added rotationIsDir to Particle System. It sets the rotation of each particle to its direction
Added test for rotation is dir in particle system
Fixed syntax, integrated lines.png and lines.plist
CCLens3d can be concave

added boolean operator to enable the lens to be concave as well as
convex
issue #1712: Adding getting dpi support for iOS and Android.
issue #1712: Adding win32 support.
issue #1712: Moved CCDevice.cpp to platform/win32.
issue #1712: Getting DPI support for Blackberry.
issue #1712: Updating project setting for blackberry.
issue #1712: Adding empty CCDevice.cpp for linux, mac and marmalade.
issue #1712: Getting DPI support for Linux.
fixed #1712: Adding default dpi for marmalade and mac since i don't know how to get DPI for these platforms.
issue #1712: DPI return integer on android.
jfloat --> jint.
fixed #1712: fix an issue of lacking table view cells after touch ended.
issue #1712: Moving getDPI from Cocos2dxActivity to Cocos2dxHelper.
fixed #1712: Updated iOS template.
issue #1712: Removed importing some unused packages in Cocos2dxActivity.
Merge pull request #1987 from dumganhar/iss1712-dpi

fixed #1712: Adding a class named "CCDevice" and getting DPI suport for Android, iOS, Win32, Linux, Blackberry.
issue #1724: Adding HelloJavascript project.