Defer to GetAttribute in HasAttribute.

The semantics of has_attribute aren't anywhere close to the ones expected for
Element#hasAttribute, and it fails an assertion when passed non-lower-case
names.
Re-enable reflection-forms.html.
Pass an Atom to VirtualMethods::parse_plain_attribute.
auto merge of #3896 : Ms2ger/servo/attr-crash, r=jdm

The semantics of has_attribute aren't anywhere close to the ones expected for
Element#hasAttribute, and it fails an assertion when passed non-lower-case
names.
Parse the size attribute on input elements.
auto merge of #3897 : Ms2ger/servo/enable-reflection, r=Manishearth
Only print HTML parse errors with RUST_LOG=script::parse
Fixes #3353: rust snapshot downloads to home directory
auto merge of #3900 : kmcallister/servo/parse-error, r=Ms2ger

r? @ms2ger
Pass the correct argument to Element::create when cloning.

The current code calls as_slice() on the Option, yielding &[DOMString], and
then calls to_string, yielding "[prefix]".
auto merge of #3898 : Ms2ger/servo/prefix-clone, r=jdm

The current code calls as_slice() on the Option, yielding &[DOMString], and
then calls to_string, yielding "[prefix]".
Implement HTMLElement.title.
Panic when bootstrap downloads fail

Also hints that 32bit snapshots are unavailable on failure

Resolves #3739

fixup! Panic when bootstrap downloads fail
auto merge of #3901 : Ms2ger/servo/title, r=jdm
Automatically update cargo when necessary
auto merge of #3894 : awestroke/servo/feauture-warn-32bit-bootstrap, r=jdm

Also hints that 32bit snapshots are unavailable on failure

Resolves #3739 

![screenshot from 2014-11-05 13 42 39](https://cloud.githubusercontent.com/assets/1098408/4917781/6edc0dd2-64e9-11e4-98bd-dbd1829ee913.png)
Disable flaky XHR test
auto merge of #3906 : mbrubeck/servo/disable-wpt-xhr, r=jdm

Due to w3c/web-platform-tests#1362
auto merge of #3902 : mbrubeck/servo/share_directory, r=jdm

This is @acmiyaguchi's already-reviewed patch from #3388, rebased and squashed onto servo master. Fixes #3353.
Remove scripts that used to run on Travis-CI.