Refactoring of /admin/receivers page

Use divs instead of table do better checking of changes in config form
Refactoring of Contexts selection pages into Service

Change the page to not be a table
Refactoring of receivers into service

Make it not be a table, but a div
Refactoring of services
Remove unneeded inclusion of page
Refactoring of admin pages
Styling of contexts and receivers settings to not be tables
Add controller for home page
Remove dead and unneeded code
Implement console for visualizing success messages
Refactoring of advanced settings pages

Remove unused code
Fix bug in binding email to model
Add configuration options for SSL vs TLS