Link to sample project added
gif file support.

some gif files are not strictly follow 89a. DGifSlurp will return read head error or get record type error.
but the image still can display. so here should igron the error.

Signed-off-by: qijiang.guo <qijiang.guo@gmail.com>
Signed-off-by: qijiang.guo <qijiang.guo@gmail.com>
Merge pull request #58 from gqjjqg/master

support gif
typo in comment fixed
Merge branch 'master' of github.com:koral--/android-gif-drawable into experimental
build.gradle cleaning, transparent index fix for #56
#60 fixed, travis config migrated to new plugin
gradle wrapper files added
release v1.0.8
prepare for next development iteration
unused imports removed
changes from #57 implemented