proof of concept new style specs
added pending styles that I missed
resolving merge conflicts
reformatted shared_examples/style
added shared style spec to several elements
merging from master
added style specs to all elements - still debugging
revert adding STYLES={} to a few classes
moved reader writer specs to style module specs
Merge pull request #871 from shoes/style_specs

Added shared specs for element#style and Common::Style

Changelog: improvement