much more variable handling
touchup
Merge pull request #287 from PeterBjuhr/master

reformat after import, see Issue #286
colorize lily code in new userguide, make Page.title() and Page.body() lazy, general improvements
handle images
new user guide browser basically working
move template string to global space
move formatting help pages to the browser module
implement cache for page titles, prevent parsing each time
move caching stuff to Cache, parents working
toc
F1 calls the new browser
snippet help...
snippet help
enable whatsthis with links to new user guide
preview prefs stub never used
prefs help new
better names
better names
fill in more help, all titles done