Merge pull request #20 from devoncarew/master

add a few more file extenions to the mapping file
mode_test : cover pr/20
pubspec : bench 0.2.19
pubspec : upgrade to bench 0.2.20
release version 0.1.3+10.28.2013
0.1.4-dev+10.28.2013
pubspec : bump trailing edge to 1.0.0