Closes internal https://dev.gitlab.org/gitlab/gitlabhq/issues/2466

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Browsers change the scroll position after the page is loaded, and the current 1 ms
delay wasn't long enough for the browser to jump to the anchor. Even then, it appears
another 100ms delay is necessary to adjust the scroll properly:

http://stackoverflow.com/questions/19057731/scrolltop-on-page-reload-doesnt-work-possible-script-conflict

Add a little more of an offset to see a few lines before the anchor.

Closes #1614
Closes #1024

Apply syntax highlighting to fenced code blocks client-side

Instead of applying the syntax highlighting scheme class to these blocks
server-side, we use Javascript and Gon to apply the user's color scheme
(or the default) client-side.

This will make it easier to cache these blocks in the future because
they're no longer state-dependent.

See merge request !1203

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Instead of rendering this value server-side, we use Javascript and Gon
to apply the user's color scheme (or the default) to any syntax
highlighted code blocks.

This will make it easier to cache these blocks in the future because
they're no longer state-dependent.

Separate activity page

Move activity to separate page.

Part of #2225

![Screenshot_2015-08-25_15.07.23](https://gitlab.com/gitlab-org/gitlab-ce/uploads/2126b22ed7b98a2f748c96ad60bc8b2e/Screenshot_2015-08-25_15.07.23.png)

See merge request !1198

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>