Add side floating navigation to the content (about) pages

[ucamhal]

This PR implements the design for https://bugs.caret.cam.ac.uk/browse/PAVO-111. A side navigation is added to each content page which scrolls with the page to stay in view.

[ucamhal]

Assigning to @bp323 for review.

Btw it's worth using git diff -w to compare the HTML changes as often they're just indentation.

[bertpareyn]

Can you have a look at the merge conflict @ucamhal

[ucamhal]

Rebased again to fix the conflict. Because the HTML indentation has changed, most HTML changes in master result in a merge conflict. If you get another please review as is and I'll do a final rebase/merge once we're done with followups. Assigning back to @bp323 for review.

[bertpareyn]

@ucamhal Can you have another look at the merge conflict

[ucamhal]

@bp323 Did you see my comment above? If you could review it as is it would make things easier.

[bertpareyn]

I saw it I just prefer reviewing on the latest master branch as changes might break stuff.

On 22 May 2014, at 11:33, ucamhal notifications@github.com wrote:

@bp323 Did you see my comment above? If you could review it as is it would make things easier.

— Reply to this email directly or view it on GitHub.

[ucamhal]

Sure. It's up to date again now. Over to you @bp323

[bertpareyn]

@ucamhal I was out for a bit and it's conflicting again. I'll have a look straight away once the conflicts are fixed.

[ucamhal]

Assigning to @bp323

[bertpareyn]

Review completed, reassigning to @ucamhal for follow-up

[ucamhal]

Followed up & commented, assigned @bp323

[bertpareyn]

Reassigning to @ucamhal to tackle the outstanding tasks.

[ucamhal]

Assigned @timdegroote to review

[ucamhal]

TODO: Fix bootstrap's use of !important in .hide breaking the upload page

[ucamhal]

Followed up & fixed boostrap's !important issue. Assigned to @timdegroote to review.

[timdegroote]

Looks good, one remaining comment. @ucamhal

[ucamhal]

Fixed, assigned back to @timdegroote