updated team members section
updated Wang Qiang's information
updated boss's description
minor styling changes
updated hung's bio
updated hung's bio pic
Merge pull request #118 from weiqingtoh/wq-dev-about-update

Update Team Members in About Us Page
enable search by tag for all courses
Merge branch 'development' of github.com:Coursemology/coursemology.org into development
Merge branch 'development' of github.com:Coursemology/coursemology.org into Deploy
add cmd to programming language, and add python 3.4
fix #113 for uploading files in mission/training/submission
Merge branch 'development' of github.com:Coursemology/coursemology.org into Deploy
precompiled assets