Initial attempt at popups - doesn't quite work yet...
Fix Markdown in Moodle 2.7/master.
Automatically detect OS on install. Issue #93.
Add a numerical component to the algebraic equivalence check.  This rejects expressions which are "obviously different" which take a significant time for the simplifier to establish as being different.
Merge branch 'master' of github.com:maths/moodle-qtype_stack
Update the numerical tests in the light of use on a unix machine.
Minor changes to the docs.
Better support for vectors:
 - bold face for i,j,k etc.
 - enable use of maxima command orderless and ordergreat.
Minor update to the docs.
Minor changes to the docs.
Further test cases.
Merge branch 'master' of https://github.com/maths/moodle-qtype_stack
Temporarily remove the numerical algebraic equivalence code...
Further changes to the algebraic equivalence class.
Made a start on the problem of spotting encapsulated commas in casstrings.  E.g. "a,b" should not be a valid expression.  Thanks to Nadine for prompting me to get started on this.
Additional test case.
Fixed further test cases in Maxima.
Further updates to AlgEquiv
Merge branch 'master' into hints

Conflicts:
	stack/cas/castext.class.php

Added a sub of a hints class.
Updated the hint system to use the syntax [[hint:tag]]