Add ability for CSS/JS to target a specific page and layout.

Add topmenu (page) and layout vars to the div id_content class.
Bump Changes.md version.
Merge pull request #76 from JackDandy/feature/AddPageAndLayoutClassNames

Add ability for CSS/JS to target a specific page and layout.
Remove legacy sickbeard updater and build automation code
Merge pull request #78 from adam111316/feature/RemoveLegacyUpdaterBuilder

Remove legacy sickbeard updater and build automation code
Revert "Merge pull request #19 from adam111316/feature/AddNetworkStandardization"
Merge pull request #81 from adam111316/feature/RevertNetworkStandardization

Revert "Merge pull request #19 from adam111316/feature/AddNetworkStandar...
Fix multiple issues relating to the startup process

Fix multiple instances of SG being able to start
Fix garbled text appearing during startup in console
Fix startup code order and general re-factoring (adapted from midgetspy/Sick-Beard)
Merge pull request #85 from adam111316/feature/StartupFixes

Fix multiple issues relating to the startup process
Add database migration code
Merge pull request #74 from adam111316/feature/AddDatabaseMigration

Add database migration code
Change KickassTorrents provider URLs
Merge pull request #86 from Supremicus/feature/UpdateKatUrls
Fix missing Content-Type headers for posters and banners
Merge pull request #84 from adam111316/feature/FixImageHeaders

Fix missing Content-Type headers for posters and banners