PLUGINS.md update
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Update PLUGINS.md
Update PLUGINS.md
Update PLUGINS.md
Merge pull request #430 from codingtwinky/PLUGIN_doc_fix

Plugin doc fix
Expanded prototype
Right icon and bugfixes
Adding z-index
auto select and show diff details on expansion
Adding commitdiff height limit and scroll
Disable outside mouse scroll when scrolling commitlinediff

two ways of doing this http://jsfiddle.net/eXQf3/371/ or http://jsfiddle.net/9Htjw/.  chose css way although I hate flickering looks but less processing
Turn off expanded when clicked outside