v2.8.0

1. change build tools from gyp to cmake.
2. adjust API ps_matrix_identity ps_scissor_rect.
3. build all platforms with cmake.

v2.5.0

Full support apple macos system.

v2.3.6

Fix some bug and adjust code layout.

Release 2.3.0 LTS version

v2.3.0

Update configure.in

Release a stable version 2.2.0

This version support image encode and decode framework, fix some bug, and optimization version.

A Stable and Optimization version

v2.1.8

fix build script issue.

Release a stable version 2.1.5

v2.1.5

move screen shot to github

cleanup the codebase and reimplements some code to stable.

v2.1.0

fix changelog format