Some ExListView polish
API for the adverts page
Setup for new command API

I modified the current command parser to parse out the desired new
format for creating commands.  You can see it in the advert plugin if
you're interested.
New command API enums
added exsto.CreateColoredPrint and exsto.CreateStringColorPrint

The first will convert a string with [c=COLOR] commands into a table
with colors and strings.  The latter will reconvert back into a string.
Construct a temporary directory when exsto inits
Added #109
Merge branch 'master' of https://github.com/prefanatic/exsto