Cleans up gemspec and readme files

closes #16
Removes outdated information from website
Removes redefined method warning in tests
Calls super from Component#method_missing

fixes #2
bump version to 1.2.3
Website configuration updates
Uploads releases to rubyforge instead of rubygems
Removes from line-ending whitespace
Adds proxy class for dealing with frozen value types

Fixes #17
Bumps version to 1.2.4
Merge remote-tracking branch 'upstream/master'

Conflicts:
	icalendar.gemspec
fixed issues based on feedback and added comments to README