Added HeadingInfo.Default and CopyrightInfo.Default.

HeadingInfo.Default exposes the default heading generated by
HelpText.AutoBuild.
Sensible defaults have also been added, removing the need to explicitly
add assembly attributes (though they still take precedence).

CopyrightInfo.Default exposes the default info generated by
HelpText.AutoBuild.
Similar to HeadingInfo.Default.

Also fixes bug #22.
ReSharper refactoring and fix of issue #22.
Merge with master.
Added missing XML doc comments; assembly signed.
nuget .nuspec updated and package pushed to repository.
VS2012 saved it with wrong line endings; reconverted to *nix.
Test project refactored using Should.Fluent library.
Extended use of Should.Fluent to whole test project.
Updated .nuspec and relative readme file.
Added ReSharper code style file.
Merge pull request #34 from mizipzor/resharper

Added ReSharper code style file.
Implementation of verb commands; short name changed to char.
Fixed formatting in README.
Added ResourcedOptionAttribute.
Merge with upstream/master.
Removed properties added by mistake during merge.
Merge pull request #25 from mizipzor/helptext

Added HeadingInfo.Default and CopyrightInfo.Default.
Consolidation of pull request #25 (mizipzor).
Added a link to verb commands blog post.
Updated version number in README...