Let bubble more random generated
Add unit test cases for EncryptionUtils class
Remove bower.min.js & bower.min.css
Merge commit 'e3bcbecc4aad0e6463001a80099d213db9d7f07e'
Merge commit '2164ee194b10c968aec17f1e1853308aa281ad48'
Remove some unneeded files
Add unit test cases for JsonUtilsTest class