Update readmes with copyright and contributions.
Formatting fix in README.
Usability fixes.

Show line coverage % per instrumented lines, not total lines.
Fail cleaner than a NPE when a source file can't be found.
Import the exception class, better message.
Merge pull request #22 from JacekLach/minor-fixes

Usability fixes.
Merge pull request #20 from JacekLach/contributor-list

Provide attributions for any bundled code.
Update project declarations: licenses, urls, warns
Merge pull request #23 from JacekLach/project-clj-update

Update project declarations: licenses, urls, warns
Merge pull request #11 from JacekLach/fix-pre-post-conditions

Function pre/post conditions do not work