Initial
PageMirror: warn if WebKitMutationObservers are absent
PageMirror sample: sizing icon correctly
options validation & tests
Fixed conflict between elementFilter & attributeFilter. Added options validation + tests
few more validation tests
make characterData and elementFilter mutually exclusive
childList is now on by default. reparent & reordered are optional. tests to assert that attributes only report for elements that STAYED_IN the tree
added README for PageMirror example
minor code cleanup
remove console output
characterDataChanged
attributeChanged
prep callbacks to handle multiple summaries
new api -- only one query supported
support *[attr] with element
added node movement tests for element & characterData, added support for node movement for characterData
multiple query support, global validator added
fix elementAttribute validation
refactor in prep for pre-computing sub-matches