[LFTILI-69] skipping validation related sequences if standalone mode is enabled
[LFTILI-70] removing audio player abstraction from player controller
[LFTILI-71] improving player controller status method by interfacing with audio stream directly
Merge pull request #20 from loftili/develop

[LFTILI-69][LFTILI-70][LFTILI-71] - refactoring related changes