Fix #195. AbstractButton no longer implements HasHref and HasTargetHistoryToken. AnchorButton now implements HasHref and HasTargetHistoryToken. AnchorButton's target history token handling is improved based on Hyperlink's implementation.
Disabling JDK8 doclint.
add ModalSize to Modal
from code review
fix whitespace
and clean import
Merge pull request #199 from jay-hodgson/master

Add ability to specify size of modal dialog
Commented out Maven settings which breaks build on systems with JDK < 8
[maven-release-plugin] prepare release 0.8
[maven-release-plugin] prepare for next development iteration
Update README.md
Add CONTRIBUTING.md
Merge pull request #202 from ArloL/patch-1

Add CONTRIBUTING.md
Modal must set tabindex attribute for ESC key to work (issue #198)
Revert Text to 0.7-version (Fixes #137)

If onAttach/onDetach are not overridden then those are called from widget where
DOM.setEventListener(getElement(), this);
is called.
This method is apparently not available for text nodes in IE8.
Merge pull request #204 from LeovR/patch-1

Revert Text to 0.7-version (Fixes #137)
Unified subText spelling (issue #203)
Disable doclint on JDK 8
Updated Maven deployment configuration for Sonatype OSS
Prepare release 0.8.1