nrembrowser 6.x-1.0-beta13

Changes since DRUPAL-6--1-0-BETA12:

• tasks #919352 by jerseycheese: Remove border on Add Media popup iframe.
• task #919558 by jerseycheese: Set Add Media dialog popup to resize heightwise automatically.
• task #919370 by jerseycheese: Clean up dialog popup element CSS, fix jQuery tabs CSS to override starter theme CSS.
• task #919570 by jerseycheese: Add widget CSS during nrembrowser_init() so they are loaded in Add Media popup iframe.
• bug report #883924 by jerseycheese: Fix the path to the required CSS file for jQueryUI 1.6.
• #919728 by grndlvl: Fixing dialog select to work with all versions of jQuery
• #924370 by grndlvl, zyexal: Adding a more helpful message to browser window when no content types are added to nrembrowser WYSIWYG
• by aaron: Filter float by left/right.
• by aaron: More intelligent title/alt handling.
• by aaron: Rebuild styles on installation.
• #899208 by aaron: Clear the cache to grab any new styles.