Rewriting anb abstracting how dashboards are loaded, unifying db, json files, and script dashboards, #960

Singlestat: threshold checks are now done on a rounded value, rounded to same number of decimals as is shown, Fixes #1983

Conflicts:
	docs/sources/installation/configuration.md
	docs/sources/installation/docker.md

Fixed a series of installation doc issues

1. Set paragraph size to 80 chars for better readability.
2. More formatting fixes.
3. More spelling and grammar fixes.

1. Fixed several spelling and grammar issues.
2. Fixed 404s for the Configuration page.
3. Fixed several Markdown formatting issues.
4. Tidy up of several pages.

Did some jquery flot performance tuning, added text size cache that reduced render times by 25% (for single serie graphs)

Adding Ansible role for Grafana v2.x

Add Android 5 theme colour

Detach stderr in rpm initscript

Quote 'measurement' properly in getAltSegments() (influxdb 0.9)

Quote 'measurement' properly in getAltSegments() to allow for dots in measurement identifier (Influxdb 0.9).

Adding Ansible role which is compatible with Grafana v2.x.