Fix incorrect path to about:failure source.
Stop messing with the case of the attribute name in AttributeHandlers::get_attribute.

This fixes a bug where GetAttributeNS would incorrectly match lower-case
attributes when called with an upper-case argument.
Merge pull request #3323 from Ms2ger/get_attribute

Stop messing with the case of the attribute name in AttributeHandlers::get_attribute; r=Manishearth
Merge pull request #3325 from jdm/jsdecode

Don't fail converting invalid UTF8 when fetching JS source. Fixes #3302.
Reinstate errors for unused variables and imports.
Remove obsolete FIXME comment.
Call from_base64 on a vector slice rather than a string slice (fixes #2877).
Merge pull request #3329 from Ms2ger/2877-base64

Call from_base64 on a vector slice rather than a string slice (fixes #2877).
Merge pull request #3328 from Ms2ger/fixme-customevent

Remove obsolete FIXME comment.
Merge pull request #3327 from metajack/cargo-profiles

Reinstate errors for unused variables and imports.
Fix broken build after denying unused imports.
Propagate absolute descendants of inline block flows. Fixes #3326.
Updates tests README.md for mach
Merge pull request #3282 from gilles-leblanc/tests-readme

Updates tests README.md for mach; r=Manishearth
Add a `mach rustc` command
Merge pull request #3334 from mbrubeck/mach-rustc

Add a `mach rustc` command
Merge pull request #3331 from jdm/ib-abs

Propagate absolute descendants of inline block flows. Fixes #3326.
Handle AttachLayout before ResizeMsg. Fixes #3333 for yahoo static suite.
Merge pull request #3336 from glennw/resize-fail

Handle AttachLayout before ResizeMsg. Fixes #3333 for yahoo static suite.
Implement generated_containing_block_rect for TableFlow. Fixes #3337.