Merge remote-tracking branch 'remotes/origin/master' into ph5
modify logic
Merge branch 'ph5' into ph5_review
modify some small point
made method for progress bar setting
gather the js function
remove unneccesary comment
change API logic
enable to change short vnodes when release & joining
gather js 's recover progress method
modify some logic
modify typo
Merge branch 'ph5' into ph5_review
refactoring some model code
change variable name
Merge branch 'ph5_refactor'