Fixed checking for Tagger. Closes #40
Support for Revo 2.3
Added system setting for collection's icon
Collections 2.0.0 alpha
Fixed selecting multiple rows

(cherry picked from commit c9eef0b78d5ac69de50b00b6dffea2f64b65dc5c)

Conflicts:
	core/components/collections/docs/changelog.txt
Fixed processors for updating collections

Fixes #46 #45
Bump version 2.0.0 alpha1
Collections 2.0.0 alpha1
Collection's templates
Collections 2.0.0