Merge pull request #15 from ChrisBoesch/master

Update
Merge pull request #16 from ChrisBoesch/master

Update 28/09
Merge pull request #17 from ChrisBoesch/master

Update
Merge pull request #18 from ChrisBoesch/master

update
Merge pull request #19 from ChrisBoesch/master

Update
Merge pull request #410 from ruijunhuang2010/master

update
Merge pull request #411 from ruijunhuang2010/master

show practice level number in small screen
Merge pull request #412 from ruijunhuang2010/master

resume challenge games in Open Challenges
Merge pull request #413 from ruijunhuang2010/master

add search filter the challenge list
Merge pull request #414 from ruijunhuang2010/master

try match path name and badges earned by player
Merge pull request #20 from ChrisBoesch/master

Update
Merge pull request #26 from ChrisBoesch/master

update
debug for quest selection #3
Merge pull request #415 from LI-HE/master

debug for quest selection #3
bug fix
Merge pull request #416 from LI-HE/master

bug fix
quest selection debug #4
Merge pull request #417 from LI-HE/master

quest selection debug #4
debug
Merge pull request #21 from ChrisBoesch/master

Update