Use the avatar.HashEmail function instead of hashing email directly.  Fixes #700
add issue list filter ui
Merge pull request #708 from ErebusBat/master

Use the avatar.HashEmail function instead of hashing email directly.
Display multi-line commit message on commit diff page.
Merge pull request #709 from TonyTsangHK/dev

Display multi-line commit message on commit diff page.
fix #706 and other mirror improve