Merge pull request #25 from abdulrauf/master

Bug fixes and code refactoring
Update README.md
install rake task

Signed-off-by: Yuri Tomanek <yuri@tomanek.com.au>
Removed Delayed::Job and replaced it with Sidekiq!

Signed-off-by: Yuri Tomanek <yuri@tomanek.com.au>
Merge branch 'master' of github.com:Gluttonberg/core

Signed-off-by: Yuri Tomanek <yuri@tomanek.com.au>

Conflicts:
	lib/engine.rb
Removing Delayed::Job

Signed-off-by: Yuri Tomanek <yuri@tomanek.com.au>
Spelling

Signed-off-by: Yuri Tomanek <yuri@tomanek.com.au>
Merge branch 'master' of https://github.com/Gluttonberg/core