[IOController] refactored readFile function; added readpermission test;
Merge branch 'feature/core' of github.com:webvariants/susi into feature/core
[testing] added bad cases for apiservercomponent;
Merge branch 'feature/core' of git@github.com:webvariants/susi.git into feature/core
Merge branch 'feature/core' into feature/coverage
[IOController] added FileExtension test, there is no check for file exists, because it is just a helper function for config loading;
Merge branch 'feature/core' of github.com:webvariants/susi into feature/core
[IOController] added makeDir test;
Merge branch 'feature/core' into feature/coverage
[testing] updated coverage report;