modified the query methods to support groups as well as nested field hashes/objects.
Modified the update methods to be able to share to a group
merged in master
added nested fields back
Removed commented out line
added specs and tweaked code based on feedback
Merge branch 'master' of github.com:aorielly/linkedin
removed duplicate checks in build_field_params
renaming to match the other shares
Update LICENSE

Making it clear the license is MIT as a followup to an email inquiry.

/cc @hexgnu
Merge pull request #195 from hexgnu/add-license-description

Update LICENSE
Merge pull request #190 from aorielly/master

Added the ability to post to groups and added nested fields parsing
Version bump and changelog changed
Test more versions of ruby
Version 0.4.5 not 0.4.4
Warning about post_group_discussion
Merge commit '9af1f3834ddbb01cc0437172f92afea57df90255'

Conflicts:
	spec/cases/api_spec.rb