Merge branch 'release/v4.3' into develop
Api improvements to support http get, non-ajax requests and better error handling.
Changed the api key access mask validation check to a bitwise operation.
Sales agent self-registration, implements and closes #6.
Sales agent maintenance, implements and closes #19.
Added installation instructions to README.md file.
Moved EftFittingString method to api controller.
Version number increment.
Merge branch 'release/v4.4'