Merge tag '1.0.0' into develop

Release: 1.0.0
Preparation for new development cycle after release 1.0.0
Sourcecode formatting.

Mostly the comments
Add Patchwork to autoload
Variables should not start with underscore
Missing license info.

License info for Composer and Patchwork/UTF-8 is missing
Stop loading composer for AVH when it's already loaded.
Add mu-plugins file.

As WordPress only scans for files in the mu-pluigns directory a file is needed to act as a loader. The file is called avh-framework.php
Add PHP requirement
Check earlier is framework has been loaded.

Instead of checking in the bootstrap.php file, we check if the framework has been loaded earlier before we load the bootstrap file.
Update installation instructions.
Rename Settings class
Add git-ftp ignore file
Remove static methods from HtmlBuilder
Move method to function.

Class is now obsolete
Update autoloader.

File version.php needs to be autoloaded.
Class \Avh\Support\Url is no longer in use.
Typo accessing properties.
Update development version
Integrate more with the framework in general.

When a plugin is started it uses the PluginController which will set the needed information for the activation hook.
Add obfuscation of email.