Only set width to full for top-level math elements, and make svg.Align() handle expanding the box to accommodate larger lines.  Resolves issue #391.
Fix incorrect index in mtable (issue #468 wasn't fixed for SVG), and make bounding box information correct for stretched character.  Resolves issue #619.
Add more comments to document jax and extensions arrays, and fix default value of positionToHash.  Issue #586.
Skip _moz-math-* attributes in Firefox.  Resolves issue #328 for now.
Allow switching of phi and varphi (new fixphi configuration parameter controls this).  Resolves issue #353.
Improve layout for CD environment.  HTML and SVG is improved; NativeMML is better, but still has some problems.  Issue #470.
Merge branch 'issue391' into develop.  Issue #391.
Merge branch 'issue619' into develop.  Issue #619.
Merge branch 'issue586' into develop.  Issue #586.
Merge branch 'issue328' into develop.  Issue #328.
Merge branch 'issue353' into develop.  Issue #353.
Merge branch 'issue470' into develop.  Issue #470.