Update charts perf tests.
Removed unused lang from calendar/calendar.js
calendar-base uses its lang, calendar had unused copies of those files
Removed unused `short_weekdays` strings from calendar/lang
Only `weekdays`, `very_short_weekdays` are used
Fixed calendar's calendar-base-manual test
There was a call to a non-existing function,
plus the test's interface was a bit confusing /  misleading
Removed superfluous `weekdays` from calendar/lang
Use `datatype-date-format`'s weekday strings (which even support way more locales)
YUI and Loader build for latest Gallery build
Merge branch 'dev-master' into dev-3.x
Fixed #831
Opera needs same special treatment as webkit for :checked selector
Adding CONTRIBUTING.md Fixes #857
add missing carriage return
Updating formatting and wrapping
Update CONTRIBUTING.md

Removed unnecessary block of text relevant only to the wiki version.
Adding block for Pull Request context
Fixing new issues link
First pass at order of operations issue hit by AlloyUI after 'add all
ATTRS at once' fix.

The issue was that they had an attribute valueFn, which depended on
an extension's constructor having been called, before the attributes
were set up.

Changed the Base init code, to invoke all extension constructors before
the 'add all ATTRS' step.

As a result however, we had a number of older extensions, which were
created before we added initializer support for extensions, and were
doing all their initialization work in their constructors. If this
work involved accessing ATTRS, they would now fail.

Moving the initialization code to an initializer fixed all these use
cases, and all tests pass [except for an expected Base test which explicitly
tested the extension constructor order of operations].

However not sure we can require that from in-the-wild extensions.
Build for extension constructor order of operations change
Merge branch 'calendar-lang' of git://github.com/asystance/yui3 into dev-3.x

Conflicts:
	src/calendar/meta/calendar.json
Build calendar and calendar-base.
Build yui to pick up calendar metadata changes.
Document Console class. Fixes #903