Remove explicit font-size's where they coincided with the default
Fix bug in loading the objectstore.
Merge pull request #2076 from dart-lang/branch_bug

Fix bug in loading the objectstore.
Merge pull request #2077 from ussuri/improve-font-rendering

Remove explicit font-size's where they coincided with the default
Merge pull request #2078 from ussuri/enabled-disabled-for-spark-button

Revers attribute name: enabled -> disabled, to match standard HTML one
Merge pull request #2079 from ussuri/enabled-disabled-for-spark-button

Revers attribute name: enabled -> disabled, to match standard HTML one
Second attemps at enabled->disabled