TravisCI: Removed manual PostGIS installation
TravisCI: Removed manual PostGIS installation

http://about.travis-ci.org/blog/2013-11-18-upcoming-build-environment-updates/

TravisCI has PostGIS 2.1 preconfigured now :)

shadowoneau/skylines,Turbo87/skylines,Turbo87/skylines,shadowoneau/skylines,TobiasLohner/SkyLines,skylines-project/skylines,kerel-fs/skylines,TobiasLohner/SkyLines,skylines-project/skylines,shadowoneau/skylines,kerel-fs/skylines,RBE-Avionik/skylines,shadowoneau/skylines,Turbo87/skylines,RBE-Avionik/skylines,Harry-R/skylines,snip/skylines,RBE-Avionik/skylines,skylines-project/skylines,snip/skylines,Harry-R/skylines,kerel-fs/skylines,Turbo87/skylines,snip/skylines,Harry-R/skylines,skylines-project/skylines,TobiasLohner/SkyLines,RBE-Avionik/skylines,Harry-R/skylines