Simplification

Code re-write to simplify the application of Intervention filters, now using call_user_func_arrayand call_user_func.
This shortened the code and allows to apply any new Intervention functions available in the future without code re-write. README adapted.
Note that the use of filter with strings, such as

{{ image | iresize(150, 100, "blur(1)->colorize(-100, 0, 0)->flip('v')" }}

is subject to deprecation in the future.

Updated loging

	modified:   Plugin.php

	modified:   classes/MediaExtensions.php

Compression

Adjusted image compression default values.

Initial public release

	modified:   Plugin.php

	modified:   classes/MediaExtensions.php
	modified:   updates/version.yaml

Check for revised source image

Check for updated source image and re-generate the resized one if teh image has changed.

Speed optimization

	modified:   Plugin.php

	modified:   README.md
	modified:   classes/MediaExtensions.php
	modified:   updates/version.yaml

Bug Fix

0.9.007

	modified:   Plugin.php

Improvements

0.9.006

	modified:   Plugin.php

Resize unfiltered images

Optimized

Pre-production release

Updated composer.json (description, removed intervention cache requirement).