LRDOCS-654 backport PACL content to 6.1.x
08-maven - Add header ID for theme info section.
13-plugin-security - Rename Expando Bridge section to Expando Bridge Security
LRDOCS-695 PACL is required for paid apps, but  is optional for free apps.
LRDOCS-689 document common security pitfals.
Merge branch '6.1.30' of git://github.com/jhinkey/liferay-docs into PACL-review-6.1.x
Security Pitfalls section: minor edits
LRDOCS-690 Preserve targeting Marketplace apps to run on the Java 6 JRE.
Merge branch 'PACL-review-6.1.x' of https://github.com/codyhoag/liferay-docs into 6.1.30
LRDOCS-689 minor wordsmith.
LRDOCS-695 Security mgr req'd for paid apps on 6.1 CE GA3, 6.1 EE GA3, and later
LRDOCS-698 Clarify example of packaging different versions of a plugin in an app.
LRDOCS-689 Header ID for common security pitfalls section.
LRDOCS-698 Reorganize the example of packaging different versions of a plugin in an app and simplify text.
LRDOCS-689 Minor wordsmith to the common security pitfalls.
LRDOCS-689 Adjust intro for developing plugins with security in mind.
LRDOCS-689 minor wordsmiths - 2.
14-marketplace - remove empty line between list items.
LRDOCS-698 Fix header IDs.
LRDOCS-698 Marketplace - minor wordsmiths.