Change Aloha-table arrows for ie7 - set another default-value
Landing GH#831

Merge branch 'hotfix-ie7-table-arrows' of github.com:stefanbinder/Aloha-Editor into hotfix

Conflicts:
	build/hotfix-changelog.md
Refactor paste plugin documenation; remove obsolete README.md
Fix capitalization typo
Fix getEditableHost() to find closest editable

jQuery.fn.parents() guarentees that it will return "a new jQuery object from the
matching elements ordered from immediate parent on up; the elements are returned
in order from the closest parent to the outer ones."

But by using jQuery.fn.andSelf() (which internally used jQuery.fn.add()), the
order of the matched elements was being reversed.  This meant that
getEditableHost() would retrieve the furthest editable host rather than the
nearest.
Fix selecting w/ <CTRL>+A inside nested editables

When the selection is inside of a nested editable, <CTRL>+A should only select
all of the contents of the immediate editable, rather than all the contents of
parent editables as well.
Improve validation plugin documentation
Move <Ctrl>+a selection behavior to editable.js

... and have it in effect for all editables--not just nested ones.
Fix exception caused by typo in variable name
Fix floating algorithm to keep surface in viewport
Clean up floating.js: documentation and linting
Remove accidental line of code
Move copypaste utilities from util/ into aloha/
Refactor getRange() to use selection api
Refactor RepositoryManager

Fixes numerous issues, including:
 * how query() and getChildren() handle immediate, and asynchronous
   repositories.
 * incorrect documentation
 * bad code
Refactor RepositoryManager (minor--no functional changes)
Update repository browser to fix bug in folder tree

The repository browser had a bug in how it listed repository folders on the tree
when working with multiple repositories--it placed each document multiple times
into every repository rather than only into the repository to which it belong.

Update to repository browser includes refactoring done to it as well.

See: repository-browser a4976e220aa3108598cc3da760602f16d66e3830
Clear timeout in repository manager before reporting
Update repository browser
Provide outerHTML polyfill

Basic support for the element.outerHTML property does not exist in browsers
older than:

Firefox (Gecko) 11
Chrome 0.2
Internet Explorer 4.0
Opera 7
Safari 1.3

There are other places in Aloha Editor code where element.outerHTML support is
being assumed--where the polyfill should be used instead.  This remains an open
issue.