[#139] Remove /rsr from URLs paths.

When RSR runs on its own subdomain, the /rsr prefix in the paths is not
needed any more so remove it in urls.py and all places in templates etc
where it's hard coded.
[#263] Replaced mini-CMS routing with routing for interim home page.
Merge branch 'feature/rsr_subdomain' of github.com:akvo/akvo-rsr into feature/interim_home_page

Conflicts resolved in:
	akvo/templates/partner_sites/auth/sign-in.html
	akvo/urls/rsr.py
[#263] Changes to allow RSR to be deployed on a non-root app path.
[#139] Removed obsolete /api URL pattern using django-piston.
[#139, #263] Changed / redirections to /home when on rsr.akvo.org.
The web server routing config in turn redirects this to the akvo.org server.
[#139] Removed the FORCE_SCRIPT_NAME setting.
We won't need this when RSR is on the rsr.akvo.org subdomain.
[#139, #263] Changed the index page link from with RSR to /home to ensure the subdomain can route back to the home page domain correctly.
[#263] Changed Akvopedia link in base.html template from /wiki to http://akvopedia.org.
[#263] Added cron config and scripts for updating home page data and blog feed.
[#263] Added missing server subdomain parameter for home page cron jobs.
[#139, #263] Added Apache config files for test servers.
Revised the subdomain routing and added bot denial config.
[#268] Add Piwik analytics

Add django-piwik to requirements

Add settings for Piwik

Add template tags in rsr/base.html and partner_sites/base.html for Piwik

Conflicts resolved in:
	scripts/deployment/pip/requirements/2_rsr.txt
[#268] Add Piwik template tags to widgets
[#251] Changed form text from 'Add update' to 'Submit update'.
[#216] Changed string "water and sanitation" to "development aid".
[#215] ISO country string changed for country code PS.
[#279] Added static map images to media assets.
[#279] Commented out dynamic maps and pasted in static placeholder images.
[#279] Added CSS to centre static map images.