VersionsManager: changed GetAvailable() return type

readme: simplified installation instructions for Apache

changed default platform to x64

fixed coding standard

Revert "changed required .NET version to 4.6"

This reverts commit fc344f4.

Version: comparison takes label into consideration

updated readme to mention PHP build-in server

changed assembly version to 1.1.x

changed assembly version to 1.1.x

typo, updated default values for settings