Add initial support for batchable issue providers.
Merge branch 'master' into batch-support
Add some testing support for batch fixes.
[CodeIssues] Make batchability be determined on a per CodeAction basis instead of a per IssueProvider basis.
Merge branch 'master' into batch-support
Improve doc comment.
Merge pull request #221 from mono-soc-2013/simonl/batch-support

Code issue batch support api