Refactoring: Moved Config generation funcs in own class

First steps towards .ini/.php config generation
Added shell and envvar to deployconfig
Feature: Added php support for config file rendering
Enabling config generation
Bugfix: Callstack
Bugfix: Parameter order
Bugfix: is_aws usage in provider needs explicit nameing
Bugfix: is_aws usage in provider needs explicit node
Bugfix: Correct path
Bugfix: node needs to be supplied, nil otherwise
Added debugging info
Bugfix: Setting default for envtype
Merge pull request #346 from fh/t/config-rendering

Config file rendering