LRDOCS-988 Added Carousel Article to devGuide
LRDOCS-988 Added Images for the AUI-Carousel to the devGuide
LRDOCS-988 Added folder for sample images to the devGuide
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-477 Generate header IDs
LRDOCS-914 number header ID.
Merge branch 'dev-guide-plus-templates-importer' into importing-templates

Conflicts:
	devGuide/en/chapters/03-developing-portlet-applications.markdown
LRDOCS-914 formatting
LRDOCS-914 Note that the resources importer can be used in all plugin types.
Merge branch 'dev-guide-plus-templates-importer' into importing-templates

Conflicts:
	devGuide/en/chapters/03-developing-portlet-applications.markdown
Adding user guide section on Twitter app. Updating #of users listed for Facebook.
LRDOCS-988 Minor editing for the beginning part of the content
LRDOCS-988 Format Markdown to fix ordered list numbering.
Merge branch 'master' into carousel
Clarifying select instructions. Adding section on getting around a proxy in Plugins SDK.
LRDOCS-988 Wordsmith