Mutation Obverser tests
Fixed test descriptions. s/set(className/set(classname/
Avoid timeout on empty mutation
Don't crash if Range isn't supported
Use document.createRange instead
target could be a function
document parsing mutations
Added another twisted script insertion
Inserting a script trigger the insertion of the children first before triggering the parent
New
Fixed Range setup
Added TreeWalker tests
Better test setup
Address review comments
Added documentation
Fixed issues for takeRecords
Added documentation
addressed attributes issues
Simplified utilities.js
Use valid pointerId and assert function, fixes #1269