updated API.txt with instructions to keep an eye on the panels project page for when we post the link to the online API

#233588 - updated hook_panels_include_directory() so that it does its job and has some protection against bad values being passed in

#239423, by levavie - RTL layouts need column widths to be explicitly less than 100% for IE, even if their container is 99.9%

#228700 by dopry; updates mc.js to be compatible with changes in jquery. necessary (usually) for allowing panels to run in tandem with jquery update, an problem discussed at length (with varying user experiences) in #202930.

#205604 fix; checks to ensure that $pv->context is not called when it is empty; doing so generates ugly foreach errors

#223236 by John Morahan. Fixes variable name that was preventing block visibility settings from being used properly

#208184 by pvasener. fix locations of 'Save' and 'Cancel' buttons on themes/layouts with right sidebars.

fixed bug with panels_save_display() that caused new pids not to appear in saved objects without calling an additional panels_load_display()

#233588: (by sdboyer) Allows external modules to tell inform panels of additional locations to search for panels plugin *.inc files.

#207158 - resolves insufficient field size issue by increasing the size of the cache field in mysql dbs.

Protect panels legacy views from contexts that aren't arrays, even though they should always be an array.

Two changes: Allow $display to be sent to the layout theme, if it exists and fix $nide typo; should have been $node

Fix from recent commit that broke required contexts in arrays, which broke panel views as well as mini panels

Fix for contexts so that arguments that fail to locate a context don't provide some false unusable context when they should be filtered out