Merge pull request #12 from ChrisBoesch/master

update
Merge pull request #13 from ChrisBoesch/master

update
Merge pull request #14 from ChrisBoesch/master

update
Merge pull request #15 from ChrisBoesch/master

update
Merge pull request #16 from ChrisBoesch/master

update
Merge pull request #8 from ChrisBoesch/master

update 02/06
Merge pull request #17 from ChrisBoesch/master

update
Merge pull request #29 from ShaikDawood/master

updating image selection in practice.html
Merge pull request #9 from ChrisBoesch/master

update 03/06
login required enabled for all tabs on Nav bar
challenges details

- S/N added
- Responded Players Tab added
Merge pull request #30 from Arathi298/master

Login & static page update
Selection

- selectquests
- enabled for smallscreen
selection

- enabled for paths
- for smallscreen
-Bug: selection only indicated form the 2nd click
Selection

- selectquests
- enabled for smallscreen
selection

- enabled for paths
- for smallscreen
-Bug: selection only indicated form the 2nd click
Merge pull request #31 from Arathi298/master

update selection
Merge pull request #18 from ChrisBoesch/master

update
Add Mobile game path in practice selection page
Merge pull request #32 from ruijunhuang2010/master

update