Removed commented-out legacy methods from property and component classes
Moved parent getter/setter into Element class
Added some comments to base exception class
Added changed classes
Moved Component::getParent(), Component::setParent(), and Component::getCore() methods to Element class and added tests to PropertyUnitTest to make sure methods work with Property class
Added conformance-checking classes and tests
Added component conformance classes
Added qCal class
Added conformance refactor
Added refactor unit tests for conformance
Added parameter generate method
Implemented negative durations
Added MultiValue property
Finished VALARM conformance
Added VFREEBUSY component conformance
Added all main component conformance and tests
Added DAYLIGHT and STANDARD timezone sub-component conformance
Added unit tests for STANDARD and DAYLIGHT and within() helper method
Removed unnecessary comments in VTIMEZONE conformance
Merged conformance branch back into master. resolves #1