LRDOCS-1058 Customizing JSPs by Extending the Original tutorial
LRDOCS-1058-QA Wordsmithed and QAed.
Merge branch 'LRDOCS-1058-QA' of https://github.com/mwilliams2014/liferay-docs into pr-167-LRDOCS-1058
LRDOCS-1058 Added back JSP snippets to show reader how to assign original JSP's content to a variable for manipulation.
LRDOCS-1058 Instruct reader how to replace placeholders. Minor formatting.
LRDOCS-1058 Instruct reader to add .portal.jsp to the end of references to the original.
LRDOCS-1058 Add ending test plugin.
LRDOCS-1058 Add comment to reference ending test plugin.
Merge branch 'pr-167-LRDOCS-1058' of git://github.com/jhinkey/liferay-docs into jim-edits
Wordsmithing.