Store this-values and arguments in immutable locals in codegen.
Add Fira Sans and DejaVu Sans to the last-resort font families.
Cleanup the Travis IRC notifications on builds to only show changes in status and use notify
Add the design document about JS-managed DOM.
fixup! Add the design document about JS-managed DOM.
Merge pull request #2701 from Ms2ger/mut-codegen

Store this-values and arguments in immutable locals in codegen.
Merge pull request #2651 from saneyuki/design_doc

Add the design document about JS-managed DOM.

r=ms2ger
Handle setting a readonly attribute on proxy reflectors correctly.
Merge pull request #2709 from larsbergstrom/travis_irc_cleanup

Cleanup the Travis IRC notifications on builds
Merge pull request #2703 from nical/last_resort_font

Add Fira Sans and DejaVu Sans to the last-resort font families.
Merge pull request #2711 from Ms2ger/defineprop

Handle setting a readonly attribute on proxy reflectors correctly; r=jdm
Linux freetype context uses custom allocator callbacks to enable memory profiling.
Merge pull request #2712 from glennw/freetype-allocators

Linux freetype context uses custom allocator callbacks to enable memory ...
Update the test results for DOMTokenList / Element.classList.
Disable tests that require the iframe load event.
Disable SVG tests.
Update remaining web-platform-tests results.