partial Spanish translation update
translation update
disabling Modernizr for now -- do we use it?
fix footnotes in collab mode, split document view and model
use model instead of view for latex export
equation removal option in dialog
add citation removal button
use 'Remove' instead of 'Delete' to avoid confusion.
removed most uses of empty space nodes
small fix get document update
reset undo/redo history when geting an update from server
insert scientific spaces after equations and citations
added support for equations in export of html
more error handling for domdiff
update fixturemedia
nodeValue of attributes is deprecated
remove log messages
record citation/equation deletion
add cancel button to math
use textContent as base for calculation of docHash as innerHTML gives very idfferent values