Update draft version READEME
Update 'Plugin options' section
Update document
Merge branch 'master' into dev
Reset
Initialize building and testing env
Add spec template
Update building and testing env
Remove gitkeep
Update karma setting
Impelment required validator spec
Update dot files
Update required validator spec
Impelment pattern validator spec
Refactor createInstance
Implement minLength/maxLength validator spec
Refactor length spec
Implement min/max validator spec
Add validate specs
Add validates