Add rel=0 to embedded youtube
Add limwidth option to matching
Add select option to string
New functions accounting
Adjust AMhelpers for credit/debit with select
Add option for no headers in showarrays
Bug fix MathQuill to AM, remove excess parens
Bug fix log with decimal base in parens
Change language cc attribution tool
Merge branch 'master' of https://github.com/drlippman/IMathAS