fix google analytics resource download event tracking
fixes for ckanapi 2.0
require ckanapi>=2.0
fix commands for ckanapi changes
README: remove reference to spatial extension
Makefile: remove postgis commands
Merge pull request #306 from wardi/for-ckanapi-2

Changes for compatibility with ckanapi-2.0
Merge pull request #305 from deniszgonjanin/master

fix google analytics resource download event tracking

Ross: I will deploy this first to the UA site and ask TBS to confirm they are getting results.
hack to reverse the polarity of portal-update-worker
make push for portal update optional
push apikey option for portal-update
add gzip option to load-datasets and dump-datasets
add mirror option to portal-update command
we need fixes in ckanapi 2.1
Merge pull request #307 from wardi/master

new options: portal-update --push-apikey/--mirror, dump-datasets/load-datasets --gzip