Implement package dependency support
Fix update-remote processor
Send proper attributes to checkDependencies
Fix package downloads

Closes opengeek/revolution#1
Fix protected method calls in checkForUpdates()

Closes opengeek/revolution#2
Basic setup for dependencies tab in package management
Updated the dependencies grid to fetch data just from build attributes. Added download package support.
Fixed style of dependencies tab
Breadcrumbs
After installing dependency go back to previous package
Show download button only if necessary
Disable continue button if all dependencies are not installed
Fixes after rebase
Fixed updating package