libjpeg-turbo v1.4 porting to android

hi, all:

Now i had been uploaded libjpeg-turbo code to git.linaro.org, you can download code by git clone https://git.linaro.org/people/neil.wong/libjpeg-turbo.git, it include patch based on libjpeg-turbo SVN:1410, version 1.4 or 1.3.90, and i also uploaded the total package under code directory.

This package based on Ragesh' patch, and i fix some bug and rewrite some code based on newest jpeg-turbo code, and this package can pass tjunittest test, and i also added rgba8888 bitmap file support, and new package use CLZ, it will reduce memory usage 64k bytes, and have above 2x speed than old jpeg library with neon support, and now this is a roughly release, you can replace your jpeg library with it and have a try.

thanks.

Neil