Fixes the post_multiselect field
Let's see if we can't get Travis running...
Trying again with linted travis file
Should resolve some failures on later versions of PHP

- PHP 4 and later don't like calling `strval()` on array values?
Self updates composer before tests run
Capabilities test fixup

- Fixes the fail output for two of the capabilities tests
Fixed tests for php5.4+, data change for post_(multi)select fields

- post select and multiselect fields now contain post slugs in the
  html rather than post IDs. This is to make lookups through an API
  where post IDs may not be reliable, or predictable, easier. When
  using RAMP for example to move to production, IDs on the production
  server will mismatch those from the staging server but slugs will
  remain.
Adds Travis status to README
Fixes mutli-select validation problems
Switches to the cfpb Travis build status
Minor Language Updates
Adds Travis status to README
Switches to the cfpb Travis build status
Merge remote-tracking branch 'upstream/master'

Conflicts:
	README.md
Merge pull request #4 from gboone/master

Fixes the post_multiselect field