Bugfix, appending version-string to css includes
Use common function to pack files
Use file stream when creating packed files
In packed files print a comment with current file name
Also pack CSS files
modulekit_include_js/css(): Bugfix, use $include_index for modulekit_get_includes()
Define $modulekit_cache_dir
When cache is out-dated, remove all files in cache
Bugfix getting current version from global variable
Define main version in modulekit.php
modulekit_load_module(): Pass all parent vars to children
Define $version for each module (inherit from parent if is in same repository)
Fix compare root version to cached version
Optionally define version dependencies for submodules
When clearing cache ignore errors
Define $modulekit_root: absolute path to repository root
Also find relative path to root of repository: $modulekit_root_relative
Build relative path to $modulekit_cachedir
Adhere $modulekit_root(_relative) when loading stuff
modulekit_file(): absolute_path may be true, false or null