Added {-type coding for backgrounds. First removal of mentions of the %c syntax from @color command (%c style syntax is still working though)
Added checking of ansi and xterm256 flags to telnet data_out, to allow a manual override of the ttype results.
Merge pull request #458 from Kelketek/master

Made __radd__ work properly for ANSIString.
Flipped __radd__ arguments for ANSIString.
Merge branch 'master' of https://github.com/evennia/evennia