Merge branch 'hotfix/allow-overwrite-params'
use the provided param names

if you provided custom param names these weren't being used to build the
query string previously
Merge pull request #1 from martin308/use-custom-params

use custom params to build query string
Bumped version number, updated readme and configured gitflow.
Merge branch 'master' into develop

# By Martin Holman (1) and Philipp Nolte (1)
# Via Philipp Nolte (2) and Philipp (1)
* master:
  Bumped version number, updated readme and configured gitflow.
  use the provided param names