fix postgis support
Merge pull request #43 from phlipper/postgis

fix postgis support
bump version to 0.11.3
brute-force replacement for `dpkg_autostart`:

* the `dpkg_autostart` cookbook was causing
  various issues with chef 11 that were affecting
  this and other cookbooks. this achieves a
  similar goal, but in a way that does not
  necessarily play well with other cookbooks that
  may rely on this functionality.
use lwrp vs. file to pin pgdg apt preferences
update current package list todo in README
cleanup formatting
use ruby 1.9 style hash syntax
Merge pull request #45 from phlipper/dpkg_autostart

remove dpkg_autostart
bump version to 0.12.0
update extensions definition for latest postgis
Update README.md to Include Updated Apt Repo Link
Merge pull request #46 from jherdman/patch-1

Update README.md to Include Updated Apt Repo Link
update README with contribution from @jherdman
Suport for Postgres 9.3
Merge pull request #47 from jherdman/postgresql-9.3

Suport for Postgres 9.3
postgis-{v}-scripts are included with postgis
remove `dpkg_autostart` cruft:

* `dpkg_autostart` isn't used any more, and this
  recipe doesn't start the service anyway, it just
  installs header files
* closes #48
make version check for 9.3 more robust
add contribution from @jherdman to the README