Update use of RegExp.$n to account for Firefoxs change from empty string to undefined for unmatched groups. Resolves issue #891.
Forgot to do the corresponding change in SVG output.  Issue #891.
Forgot to do the corresponding change in SVG output.  Issue #891.
Move CoreParent, CoreText, remap, and remapChars to element jax (since shared among the output jax), and fix positioning of double accents like \vec{\vec{x}}.  Resolves issue #877.
Prevent empty annotation as first child of semantics element from producing an error.  Resolves issue #805.
Force separate web font names for bold, italic in WebKit.  Resolves issue #845.
Add some short delays between input and output phases or processing so that messages can be udated, and the browser can respond to the user (in case multiple typeset calls are queued simultaneously).  Resolves issue #872.
Merge branch 'issue891' into develop.  Issue #891.
Merge branch 'issue877' into develop.  Issue #877.
Merge branch 'issue805' into develop.  Issue #805.
Merge branch 'issue845' into develop.  Issue #845.
Merge branch 'issue872' into develop.  Issue #872.