removed symlinking of historical log files and cleaned up the logging system to output the junit xml and the server log to the evidence directory. Added a bit of test for that.
Pulled out the log value setter from shared_context and rolled this up into selenium-connect instead. Bumped to new version of selenium-connect to get this functionality
Merge branch 'feature/logging' into develop

Conflicts:
	bin/ckit
	chemistrykit.gemspec