move some global callbacks into local callbacks and fix tests
update tests and try to make them more structure !
add more tests for trip_events and add delay when sending keys
add `grunt bumpversion` command ! We can now bump versions easily
add onEnd back no matter how we finish trip.js
add lots of jsdoc comments !
add grunt-jsdoc to generate docs !
update batch to checkout doc folder
add markdown for jsdoc and @memberof to generate right data
fix #55 about o.sel problem when it is string and fix hint problem
fix path problems when subdirectoy is introduced and some other docs
update 2.0 documents !
bump version to 2.0.0