add flickr icon
delete unnecessary .html in master
result of foldr change in my local drive.

not sure if i should commit this or ...
Revert "result of foldr change in my local drive."

This reverts commit 7f6d16e57223876e1ee37767fdc7c84e05f7a49d.
Revert "Revert "result of foldr change in my local drive.""

This reverts commit b5d3e7ac3d9c1adcbc7ebf0f04771c2a4f1cd020.
add hackfoldr template for hackathons
remove unnecessary tooltip i created before...

because they are quite annoying on desktop orz
Merge branch 'master' into develop