Fix issue 173
Merge pull request #3 from wysiwhat/issue173

Fix issue 173
ticket 210: added nbsp to the empty span we add new, inserted math into
Merge branch 'dev' of github.com:wysiwhat/Aloha-Editor into dev
ticket 182: move the Done button on the math edit popover
ticket 183: tooltip for delete math x needs only one line
do not strip MathJax out of DOM
Use MathJax HTML+CSS to render and insert the raw MathML into the DOM

This will work in Firefox and Webkit browsers
ticket 209: add non breaking space after math equations after upload and after insertion
Merge branch 'dev' of github.com:wysiwhat/Aloha-Editor into dev
Remove MathJax HTML+CSS elements when serialized

using aloha ephemera classes
Add CSS to hide the MathML
Use MathJax HTML+CSS output and serialize MathML

Hides MathJax elements using aloha ephemera classes
wrap MathML <annotation> in <semantics>
Merge branch 'dev' of github.com:wysiwhat/Aloha-Editor into dev
Fixed element typo
Merge branch 'dev' of https://github.com/wysiwhat/Aloha-Editor into dev
put annotation to the end so that MathJax can render it
Merge branch 'dev' of github.com:wysiwhat/Aloha-Editor into dev
wrap math in semantics into mrow when equation has more than one child element