Feature request: Paginate the list of repositories

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Run gitiles on a server that has 6000+ gits
2. Open the repository list
3.

What is the expected output? What do you see instead?

It lists all the repositories on a single page. On a server that has so many 
repos, this causes quite long load time.

It would be nice if the index page could be paginated.  Looking at the 
implementation though, it looks like it scans the whole list of repos for each 
request.  Would it be possible to cache the list?


What version of the product are you using? On what operating system?


Please provide any additional information below.

Original issue reported on code.google.com by david.pu...@sonymobile.com on 26 Aug 2015 at 3:24