Merge pull request #239 from zrong/develop

fix a ByteArrayVarint decode issue
Add crypto:md5file in framework
Merge pull request #240 from uhoohei/develop

Add crypto:md5file in framework
add a fill parameter to ccDrawCircle method, and CCCircleShape now can draw a circle with fill.
set a default value of paramerer fill to false.
modify display.newCircle and display.newRect to support more parameters;
add display.newSolidCircle to draw a circle by CCDrawNode.
compile framework
merge develop
merge zrong/develop