LRDOCS-986 Copied  Eduardo Garcia's RTL Hook documentation from https://github.com/jhinkey/liferay-plugins/pull/6
LRDOCS-986 edited epgarcia's RTL Hook section to match guidelines
LRDOCS-986 added epgarcia's RTL Hook images to devGuide images folder
Merge branch 'rtl-hook' of https://github.com/mwilliams2014/liferay-docs into rtl-hook-mike

Conflicts:
	devGuide/en/chapters/11-customizing-with-hooks.markdown
Resolve conflict 2
LRDOCS-986 Added steps for using rtl-hook in portlets and fixed build.xml steps.
Merge branch 'rtl-hook' of https://github.com/mwilliams2014/liferay-docs into rtl-hook
LRDOCS-986 Formatted code blocks. The backtick notation doesn't work well in list items.
LRDOCS-986 Wordsmith intro and title.
LRDOCS-986 Edit applying RTL to a plugin. Wordsmith the custom CSS steps.
Merge master into rtl-hook
Merge branch 'rtl-hook' of https://github.com/jhinkey/liferay-docs into rtl-hook
LRDOCS-986 Made minor edits to RTL hook article
LRDOCS-986 Minor changes. Wordsmithing of custom the CSS section.
LRDOCS-986 Mention downloading from marketplace. Add note about the hook temporarily doing CSS fast load in spite of whether CSS fast load is disabled.
LRDOCS-986 Added note about reloading the page to clean the cache for rtl-hook.
LRDOCS-986 Add header IDs
LRDOCS-986 Use Right to Left Language Support to refer to app. Update ID.
Merge branch 'rtl-hook' into dev-guide
LRDOCS-986 Revert ID change. Format modified paragraphs to 80 columns.