Fix for bug 69768, if the user types something like 3fd and then hits a button, the getMathVal was incorrectly assuming it was a TeX entry.
Fix up some of the node resizing issues, however the different font sizes can still cause issues.
Fixes issue 69770, fractions were causing issues with both append and unshift.   It could also do some pretty broken things with replacing a box.
Checks in a test case and fix for the fraction append and unshift issues.
Fixes issue 69770, fractions were causing issues with both append and unshift.   It could also do some pretty broken things with replacing a box.

Checks in a test case and fix for the fraction append and unshift issues.

Fix up an issue with the cvs merge.
Fix one of the makeFraction tests.
Merge branch 'master' of github.com:UberMeatShield/MathEditor
Merge branch 'master' into gh-pages
Merge in bug fixes, slightly update the name of one of the examples.