Fix problem checking missing dependencies
Fix some typos
Improve missing dependencies tests
Restore endpoint order when loading wiring status into the Wiring Editor.

Signed-off-by: Álvaro Arranz <aarranz@conwet.com>
Remove unused function: get_mashup_widgets
Remove unused class: MashupTemplate
Remove unused function: is_localhost
Remove 'application/x-www-form-urlencoded' mimetype support for creating workspaces
Add more tests for the POST operation of the workspace collection resources
Fix bugs when using the dry_run option at workspace creation
Add tests for updating workspaces
Fix some problems updating workspaces (renaming and setting as the default one).
Also test passing a string for the dry_run option
Remove unused function: clone_original_variable_value
Also test passing a string for the active option
Remove WorkspaceLinkerEntry
Remove WorkspaceExportService
Add initial workspace variable collection tests
Fix some copyright headers
Use POST verb for updating workspace variables instead of PUT