Add simple configure script

It lets you set TCP ports of database, sql-api and map-api.
Have "all" rule run bundle install
Add --with-pguser support
Add python and npm steps to the "all" rule
Fix sample app_config.yml so that is ready to run all of the testsuite

Closes #859
You need 'rspec' command to run single specs
Merge branch 'master' of https://github.com/CartoDB/cartodb
Merge branch 'master' of https://github.com/CartoDB/cartodb
Merge upstream
Database sample file
CDB-4364 Implemented POST support
Adds stamen maps
custom basemap icon
Merge branch 'master' of https://github.com/CartoDB/cartodb
CDB-4369 check stubbing invoked
CDB-4364 Specs stabilization
Disabling debug flag now that works ok in live
Changes in lock visualization within table/vis view
Adding crazy egg
Merge pull request #876 from CartoDB/crazy-egg

Adding crazy egg