added kResolutionFixedHeight and kResolutionFixedWidth resolution policy

These new resolution policies will either ignore the width or height of the
specified design resolution size, but scale the ignored dimension, so it
matches the aspect ratio of the device.

Example:
A device with 854x480 pixels and a design resolution size set to 480x320
and the kResolutionFixedHeight policy, will create an internal canvas of
the size of 570x320px
If the device original size is 800x480 its internal size will be
534x320px
The height for both examples stays the same, the width is adjusted to match
the aspect ratio

Benefits:
- no distortions
- full canvas is usable, the visibility origin is 0/0
- I can use getWinSize() to place objects which is more intuitive
- for objects that should be placed at 0/0 I can use CGPointZero or 0/0 instead
  of the VisibilityRect methods, which is more readable
- using this method projects from the 1.x branch are probably much easier to
  port

Disadvantages:
- it is the developers responsibility to create the game code so that it
  supports multiple aspect ratios
fix for spaces when wrapping
Fixed setAccelerometerInterval signature in setAccelerometerIntervalJNI function.
Merge pull request #2394 from jotel/master

fixed #2061: Wrong type of argument signature is used in setAccelerometerIntervalJNI function.
Update AUTHORS
Merge pull request #2390 from scoyo/master

Fix for spaces at the beginning of wrapped lines
Update AUTHORS
issue #2064: Adding conversation for "jsval ~> CCAffineTransform" and "CCAffineTransform ~> jsval".
Removing unused file (uthash.h) in Project.pbxproj.
Refactoring js_cocos2dx_CCFileUtils_getByteArrayFromFile.
issue #2064: Updating tools/tojs/cocos2dx.ini.
fixed #2064: Updating the submodule reference of bindings-generator.
Merge pull request #2395 from dumganhar/iss2064-js-node-tranf

fixed #2064: Exposing cc.Node.nodeTo***Transform to JS since it's used in CocoFrameworkJS.
cocos2dxmatoMac-mini : updating submodule reference to latest autogenerated bindings
Merge pull request #2396 from CocosRobot/updategeneratedsubmodule_1366264667

cocos2dxmatoMac-mini : updating submodule reference to latest autogenerated bindings
Removing an unused comment in ccaffinetransform_to_jsval.
Merge pull request #2397 from dumganhar/master

Removing an unused comment in ccaffinetransform_to_jsval.
Merge pull request #2193 from Weeds/feature-screen-dimensions

fixed #2065: Adding kResolutionFixedHeight and kResolutionFixedWidth resolution policy.
Update AUTHORS
Adding popSceneBack() function to CCDirector

This function deletes the running scene and returns the actual scene
back to the caller. This way, we can simply use it to perform a
transition animation, like this:

    CCDirector::sharedDirector()->replaceScene(
            CCTransitionSlideInL::create(0.5,
            CCDirector::sharedDirector()->popSceneBack()));

Signed-off-by: Rodrigo Goncalves de Oliveira <rodrigo.goncalves@openbossa.org>