Parse some links on help pages. Refs #6965
Add link parser. Refs #6965
Parse some links to wiki. Refs #6965
Resolve conflicts. Refs #6965
Conflicts. Refs #6965
Fix wiki for parsing to qtassistant. Refs #6965
Fix small bugs. Refs #6965
More details with Qtassistant help. Refs #6965
Merge remote branch 'origin/feature/6965_wiki_links'

Conflicts:
	Code/Mantid/docs/qtassistant/CMakeLists.txt
	Code/Mantid/docs/qtassistant/mediawiki.py

Re #6965