Fixed bug with custom error handler not returning as json content type.

Renamed InvalidSyncIdException to SyncNotFoundException.
Updated tests.

Refactored db tests to mock config methods.

Added support for using a relative path (resolves #36 and #37).

Updated license to GNUv3.
Updated dependencies.

Fixed docs layout issues.

Replaced px with REMs in docs css.
Added new logo.
Added optimised svgs.
Added webpack dev server for testing docs.
Updated vscode launch and tasks config.

Fixed linkify bug in docs index page.

Updated service status styles.

Fixed bug preventing new syncs being created when total documents in …

…newsynclogs greater or equal to dailyNewSyncsLimit.

Updated dependencies.

Username and password in mongodb connection uri are now escaped to al…

…low for special characters (resolves #16).

Resolved tslint issues in tests.
Removed unused dependency: decache.
Updated dependencies.

Replaced dependency mongojs with mongodb.

Fixed deprecation warnings.

Updated API version number to 1.1.5.

Updated dependencies.
Replaced uglifyjs-webpack-plugin with terser-webpack-plugin.

Updated dist to latest.