Added ability to specify multiple targets.
Improved features description.
Bold instead of italics.
Fixing coverage problems.
Added links to nose and trial
Fixing some coverage issues.
Using broader green ommission.
Improved readme
More readme improvements
Merge pull request #4 from rolobio/multiple-targets

Added ability to specify multiple targets.
Fixed Roland's logic error in the adaptation of the omit logic.
Removed an unused import.  Changed an internal test module name so that it would be unique.
Fixed the default for args.targets to be a list with one item.  The bare string luckily worked as long as the default was one character long (because the zeroth element of a one-character string is the one character.
Removed Roland's extra code that made testing easier, and made a much more thorough (and hard to code) test that also brought coverage back up to 100%.  Multiple target testing should be good to go, now.
Bumped version.
Removed a redundant coverage call.
Changed the multi-target test from a coverage test to an actual test with an assert.
Refactored multiple-target handling out of the command-line processing into the loading.  Makes it easier to test, reuse, etc.
getTests now de-duplicates the target list passed in.  Added debugging indicating number of tests loaded per target as well.
Bumped version