Some bug fixes.
DashedSentence: add hideUnderscores option, which replaces underscores with non-frame-breaking spaces
Update manual.txt with note on 'hideUnderscores' option.
DashedSentence: allow for specification of line break points, as \r or \n
Merge pull request #2 from mitcho/master

Allow for explicit specification of line breaks
DashedSentence: fix bug where results included a row for the line break, messing up RT placement
DashedSentence: when hideUnderscores is used, make sure to hide *all* underscores
Merge pull request #3 from mitcho/master

Fix incorrect results output based on explicit line breaks
Fix bug which caused commas not to be escaped in results from Form controller
Fix typo in creation of error string in server.py ('%S' instead of '%s')
Update manual.txt
Question: in key input answer checking, check first that answers are arrays before using [0] and [1]
Merge pull request #9 from mitcho/master

Question: key input saves bad results
Fix some bugs in VBox
Update manual.
Improve chunk loading (chunks now preloaded before experiment starts)
Merge branch 'master' of https://github.com/addrummond/ibex
Fix bug in preloading message display logic
Fix server.py to work with Python < 2.6
Remove stray import json from server.py