Merge pull request #1355 from mahagr/master

Fix #1334, modify gitignore, fix dates in template manager if using GIT repository 
Remove useless image file which causes issue
fix : TypeError: choice.addClass is not a function in default.js 
#1300 Remove back buttons
Merge pull request #1359 from mahagr/master

Admin: Fix some copy-paste bugs in filtering
Fix less on strapless template
Fix less on strapless template (part2)
Merge pull request #1360 from 810/master

fix less on strapless template
Merge pull request #1358 from xillibit/k30_bugs3

#1300 Remove back buttons
Merge pull request #1357 from xillibit/k30_bugs4

fix : TypeError: choice.addClass is not a function in default.js 
Merge pull request #1356 from xillibit/k30_bugs5

Remove useless image file which causes issue