add CSS3 image-orientation
add picture element data file
update spec url
update spec status. Looks like picture element is not an official spec by W3C. Somebody needs to review this commit
add demo link
add picture element support for IE. The spec url indicates that the implementation for IE is not there yet
The spec url indicates no information on implementation
update support for all the platforms. Almost all set to unknown
update keyword usage percentage
Add CSS Shapes feature
Update calc.json

Blink is now ok for mixing vh and calc (https://code.google.com/p/chromium/issues/detail?id=168840)
Webkit still can't (https://bugs.webkit.org/show_bug.cgi?id=94158)
data update
Merge pull request #530 from andreasbovens/master

Added correct Opera support data on matches() DOM method
Merge branch 'master' of https://github.com/Fyrd/caniuse
Merge pull request #529 from tancrede/patch-2

Update calc.json
Merge branch 'master' of https://github.com/Fyrd/caniuse
Update Opera support

`srcset` with `x` support now in Opera 21 http://dev.opera.com/blog/opera-21/
Update object-fit.json

according to http://www.chromestatus.com/features/5302669702856704
Update deviceorientation.json

Added an issue in Opera Mobile 12 regarding the `interval` property.
data update