autopreview in styler plugin

allow resizing the dialog

fix keeping the current page

added more localization

added color picker support

I'm not too hapy with it

update test groups for the extension manager test

started to localize the styler plugin

make styler work without JS as well

make styler plugin work without javascript as well (partly done)

__construct

more improvements

we have working save and revert buttons

php7 compatibility: change revert plugin constructor to __construct

a first very basic implementation of the preview mechanism

allow preview style replacements

PHPDocs

Changes for PHP 7 Compatibility
- replace PHP4 style class constructor function names (based on
class name) with php 5 __construct()
Also remove some '&' reference operators used with objects
And a

Changes for PHP 7 Compatibility
- replace PHP4 style class constructor function names (based on
class name) with php 5 __construct()
Also remove some '&' reference operators used with objects
And add some object type hints

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added composer setup and the first composer package php-archive

translation update

translation update

translation update

translation update

translation update

Fix variable name typo

Adhere to CSS style guide