Merge pull request #124 from khoa-nd/master

Please pull the latest code
Merge commit '9d3392706502dd0bdd30f46583d54164c44763fc'
Merge branch 'master' of https://github.com/phuonghuynh/TechLooper
Merge pull request #125 from khoa-nd/master

Merged
Insert log to print stack trace to debug the authentication problem in DEV server
Merge branch 'master' of https://github.com/phuonghuynh/TechLooper
Merge pull request #126 from khoa-nd/master

merged
Change session management policy
Merge pull request #127 from khoa-nd/master

Merged
Merge pull request #128 from chrisshayan/Release14

Release14
Apply Logback to help easy trace log messages