Wrote test for img-src-4_1

http://www.w3.org/Security/wiki/Test_Assertions_For_Content_Security_Policy#Test_Assertions_for_img-src_directive
test for stylesheet load via link element being blocked if not in style-src
port existing php test over to new test harness
port existing php test for data: correctly allowing script in data: URIs to execute
port test for script-src 1.9 from php tests
start fleshing out some SRI tests
typo
Make the test behave equally in different UAs

Usage of the first event received causes different behavior in different browsers as they have differerent events order. This forces usage of specific event type
Add explicit done() call to avoid harness timeout
Tests for AnimationNode attributes
Cleanup of Microsoft's worker tests
Make Worker_ErrorEvent* tests work
Fix WorkerLocation_port test. Fixes #1397
Merge branch 'submission/Microsoft/PointerEvents-AddExplicitDone' of https://github.com/InternetExplorer/web-platform-tests-msft into submission/Microsoft/PointerEvents-FixTestFailures
Merge branch 'submission/Microsoft/PointerEvents-UpdatePointerTypeMouse' of https://github.com/InternetExplorer/web-platform-tests-msft into submission/Microsoft/PointerEvents-FixTestFailures
Changes according the review notes
Different duration values added to the computedTiming test
add missing detected_pointertypes code
use shared showPointerTypes() function
fixing variable visibility issues