remain size to prvent MB residual reading overflow
add safety check for bit-reading for headers
Add a missing include directory in the android makefiles
Remove unused proguard config files
Ignore files generated while building the android projects
Remove unnecessary commented out code in the android makefiles

Comments isn't a place to store code snippets that might (or
might not) be useful later.
Merge pull request #315 from mstorsjo/android-cleanup

Minor cleanup of the android build files
minor fix readme
fix typo
Merge pull request #316 from licaiguo/fix-readme

Fix readme
enable x86 asm for android
Add iOS support for decoder.
Merge pull request #317 from licaiguo/enable-x86asm-android

enable x86 asm for android
Merge pull request #318 from zhilwang/add-ios-decoder

Add iOS support for decoder.
Simplify encoder interface--remove EncoderFrame2 from interface
function
Merge pull request #319 from ruil2/encoder_update

Simplify encoder interface--remove EncoderFrame2 function
Merge pull request #320 from huili2/mb_residual_size_check

remain size to prevent MB residual reading overflow
refine android build, add TARGET option to specify target in sdk
init the spatial last spatial picture if excption
update README