Ignore tmp/backup files while using watcher
Ignore tmp/backup files while using watcher

This fixes #212 and Adds the logic to skip tmp and backup files
generated by Emacs, Vim or SublimeText. More RegExps can be added
to 'ignoredFilesRegExps' slice in watch.go file.

qida/bee,qida/bee,tguangch/bee,BorisBorshevsky/bee,ogero/bee,beego/bee,amrfaissal/bee,kyawmyintthein/bee,franzwilhelm/bee,beego/bee