fix on yuan.info extend. trim value of revision
white log message. don't reload gruntfile
improve code quality in grunt log
update dependencies
remove grunt dependencies
remove spm build #25
show message for spm build #25
fix on file sdk
readme
fix install force behavior. #16
record commands run time
release for ninja
fix spm tree
fix util.program. fix on install. version bump 2.1.0a2
invoke grunt tasks with spm-grunt
changelog prepared