initial commit.
add the tclip implementation.
compile the tclip source with setuptools.
expose the python interface.
fix up the package structure.
add readme file.
add cffi as dependency.
use high-level api of cffi instead of compiling by self.
add basic test.
fix up the compatible problems in py3k.
add the travis-ci configuration.

install dependencies in travis-ci.

fix up the broken travis.

fix up the path of opencv header file.

fix up the missing headers for travis-ci.

fix up the confirm options of travis-ci.
add badge icon for readme.