added DBD::Pg as a recommended dependencies
added Sub::Uplevel as a prerequisite
updated travis config and toolchain files
Merge branch 'develop' into bug/testing-failure
Skip stock tests if TC_DSN not provided
String-Random module is not required
Updated init as per new File-Temp
Added expat dep install for travis-ci
Merge pull request #97 from dictyBase/bug/testing-failure

Fixed dependency issues for CI on Travis