Changes to the demo course.
 - information blocks in the Demonstration Quiz (thanks to Phil for the suggestion)
 - Geogebra quiz (thanks to Matti Pauna for contributing this)
 - numerous fixes to the question tests etc.
Minor updates to docs
Fix to issue #88: check for whitespace in tags, e.g. [[input: ans1]]
Removal of the "MaximaPool" and "MaximaPool (optimised)" options for the platform type.  We just now have the "server" type.
Merge branch 'master' of https://github.com/maths/moodle-qtype_stack
Fix a bug with ATInt when integrating partial fractions to tighten up the way we deal with log(x) and log(|x|) issues.
Delete the translations

Translations of all Moodle add-ons should now be handled through
http://lang.moodle.org/. Please use that to translate STACK.

If you need get your old translations to upload there, you can get them
from git history.
Further test cases.  Thank you Matti Pauna.
Should use consistent notation for $\log$, not $\ln...$.
Update version.php and Readme.md for the 3.2 release.
Better error checking on partial fractions test.
Minor updates to algebraic equivalence.
Changes to validation of casstrings. We now *allow* syntax such as 3e2 to represent floating point numbers.  The strict syntax settings still flag 3e2 as "missing stars".
Move all the unit tests into the top-level tests folder.

This is what the Moodle PHPunit framework expects. This avoids having to
manually edit the phpunit.xml file.
Global replace dirname(__FILE__) -> __DIR__.
Updates to the docs
Minor bug fix to feedback during validation, more unit tests and a couple of broken file paths.
Minor update to the docs.
Update credits
Bug fix and further test cases to ATInt.  Thanks to Matti Pauna and Anna Kairema for reporting this problem.