update package version
Merge branch 'release/v2.0.2' into develop
move function format.backup to utility.backup
move zip function to utility.js, move maven env to env.js
implement archive interface
refactoring utility zip unzip function
implement unarchive interface
update test case
fix archive arguments data format bug
fix unarchive info data format bug
update test case
trigger travis
compatible old original file path
add dir walk function
restore formatted file from upload archive
Merge branch 'feature/save_and_load' into develop
Merge branch 'develop' into bitdewy/master