[#1804] Add config tool.
[#1804] Config tool can uncomment commented options.
[#1804] Config tool used by Dockerfile.
[#1908] remove IConverters and make get_converter an alias for get_validator
[#1909] phix phantomjs peerinvalid phailure
[#1804] Config tool refactored to allow passing in an ini file with options to merge into an existing ini file.
[#1804] Config tool tests & PEP8
[#1804] Config tool PEP8
Merge branch 'master' of github.com:ckan/ckan into 1908-remove-iconverters

Conflicts:
	setup.py
Merge branch '1908-remove-iconverters'
Merge pull request #1881 from ckan/1804-config-file-tool

Config file tool