Typo
Download Log Fix for Windows

issue #875
Hopefully fixes #877
Partially revert fix for #877
Needed  publishCheck() after all.
Some code cleanup
Fix undefined variable $admin
Merge remote-tracking branch 'upstream/master'

We will do these changes our way.

Conflicts:
	zp-core/admin-upload.php
	zp-core/lib-auth.php
Use ZipArchive if present