updated CreateCharTables.sql to allow startTime to be empty in Char/SkillQueue.
Updated CreateCharTables.sql and class to add default for startTime and endTime in Char/SkillQueue.
Updated composer.json to show requirement for symfony/yaml.
Updated .gitignore to ignore config/yapeal.yaml.
Added bufferSize settings to Yapeal.Log and Yapeal.Error in yapeal-example.yaml.
Added Yapeal::wireConfiguration() so settings can now come from config file instead of being hardwired.