Drop unused init

* Dropped pre-cli init - not used
File attr

* Added db support for file attr
Stash!
Error catcher, ignore known errors

* Error catcher ignores var_export warning
Renderer, fix warnings

* Removed @ construct
File, basics

* Added basic file methods
* Added file copy
File hash, chunks

* Added min chunk size, 4096 kB
File saving

* Files can be saved, loaded, unloaded, etc
* Dropped deprecated function save_content
File temp

* Files can be put into temporary dir
* Temporary files are dropped on __destruct
* Recreated file fetching - file stays in memory
File class, docs
Temp files, keep

* Temporary files can be kept using keep attribute
Thumbs

* Separated thumbs from images to increase readability
File class: hash, time

* Added time to hash sequence to ensure file uniqueness
Database model, old code

* Dropped old image save code from database model
Image thumb, recycling

* Added support for image thumb recycling
Images, models

* Added support for new file to Attr and Database model
* Fixed bug causing thumbs to regenerate every time
* Fixed thumb logic
Images, Thumb dropping

* Thumbs are dropped on image/file drop
Urls, seoname numbers

* Seonames can contain numbers
Files, from_form

* Added support for files to forms
[fix] File, recursion

* Fixed bug causing recursive call to File::exists()