Exposing HTTP POST request.
Moved documentation.
Merge pull request #363 from akoenig/api-http-post

Sandbox: HTTP POST extension
Fixed promise call.
Merge pull request #364 from akoenig/api-post-bugfix

Fixed promise definition.
Removed dupe.
Merge pull request #365 from akoenig/api-post-bugfix

Removed dupe.
Implemented more HTTP verbs (PUT, DELETE).
Fixes #361
Fix version number in package.json
Modified the parameter passing.
Fixes #351 (help improve zed dialog), hopefully.
What this does in case a `user.json` file is corrupt (syntax errors) is
make a backup under `user.backup.json` then write a new user.json with
the preference (in this case enableAnalytics) written. This restores
sanity without really losing configuration data.
Fixes #352
Only shows file changed prompt once.
Fixes #346
Implemented check if the result.error is not undefined nor null.
Modified the operator.
Merge pull request #366 from akoenig/webworker-rejection-fix

Webworker rejection fix
Extended the HTTP API for performing PUT and DELETE requests.
Merge pull request #367 from akoenig/api-http-verbs

Extended the HTTP API for performing PUT and DELETE requests.
Further fixes #361
By also taking into account availLeft and availTop.