Changes to the Getting Started page

Updating two sentences (and links) per Mark de V request.
Getting started--corrected URL

Corrected the URL
Getting-Started

Added period to the end of the sentence.
Merge pull request #109 from deb-cfengine/MarkCharges

Changes to the Getting Started page
Use wiki-style syntax
Its better to use the central linking system in _refrences.md so that we
can make widespread changes easier.
Remove tables obsoleted by pre-processing scripts
Fixed leftover reference to acl_directory_inherit.
Merge pull request #111 from kacfengine/acl_typo

Fixed leftover reference to acl_directory_inherit.
cf_audit is no longer used
Update documentation on local databases and logs
Merge pull request #110 from nickanderson/consolidate_links

Use wiki-style syntax
Some editing of style and markdown
Document disableCache flag
sys: add info about new cfengine_version_{major,minor,patch} variables and fix Community -> Core
sys: add history markers
Merge pull request #113 from tzz/master

sys: add info about new major, minor, patch version variables
Include stdlib sections
Include all sections
Trying to fix suspicious Liquid exception
Liquid problem fixed in source file

Nice to be able to use liquid expressions, but should probably be escaped somehow
by pre-processing scripts...