Merge pull request #448 from takeit/stablemaster

Removed MailChimp from core
fix for repository usage, add seting publication with alias, and remove bootstraping application from statistics class
Merge pull request #460 from ahilles107/fix_cache_clear

4.3 polishing
prepare cache dirs for plugins remove/update
Merge pull request #461 from ahilles107/fix_cache_clear

prepare cache dirs for plugins remove/update
add plugins installer as default dependency
Merge pull request #462 from ahilles107/fix_cache_clear

add plugins installer as default dependency