Hmm
Merge branch 'devel' of github.com:DavePearce/Whiley into devel

Conflicts:
	modules/wyrl/src/wyrl/io/JavaFileWriter.java
Merge pull request #271 from DanielGibbsNZ/devel

Fixed Issue #253
WYC: added comments around the new Code.Nop bytecodes which are inserted before Code.LoopEnd's to address #253.
Improving the quality of the examples.
Working on tidying up the WYRL examples a bit.
Some changes
Making progress
Completed example.
Ok, a few more tweaks.
Begun a simple arithmetic evaluation.
Making progress
Ok, it's starting to work ... which is nice ;)
Ok, basic aritmetic example is almost working!!
WYRL: making good progress with the arithmetic example.  Still need to handle equality and not equals.  Also, would be nice to factor it more.
WYRL: added missing example.
WYRL: added a README for arithmetic example.
Added another example.
Minor tweaks.
WYRL: added types example, which appears to have some issues.