Fix app-text/mupdf
Update net-im/pidgin to 2.10.7

My patch still applies.
Update dev-java/sbt to 0.12.2

I'm not entirely sure how to deal with SBT versions, as this just goes
and dies when a package enforces a SBT version that's not installed,
but I guess for now I'll just update...
Update net-im/pidgin to 2.10.7-r1

I guess I should push my short names patch to upstream...
Fix net-im/pidgin

This was printing to stderr, but it shouldn't have been.
Update app-text/tek to 0.1.2-r1

This was an error related to GCC 4.6, but I think it's worth a version
bump just to make sure it works for everyone.
Update tek to 0.1.3