Adding 1st example contrib'd from https://developers.google.com/webmasters/business-location-pages/schema.org-examples
List enumerated types for MedicalEnumeration

As MedicalEnumeration is not currently a subclass of Enumeration, the
enumerated types are not listed. Make MedicalEnumeration a subclass of
Enumeration.

Fixes #12

Signed-off-by: Dan Scott <dan@coffeecode.net>
Fix markup error in Salinger example (docs/gs.html)

This bug was reported by John Biundo <johnfbiundo@gmail.com> to
public-vocabs on 2014-05-10.

Signed-off-by: Dan Scott <dan@coffeecode.net>
Fix typo in docs/datamodel and make style improvements

1. s/heirarchy/hierarchy/
2. Phrases that lead up to a list should end with a colon
3. Simplify the sentence leading up to the RDFa Lite example
4. Use an ordered list for the steps to convert microdata into RDFa Lite
5. Update the "last updated" date (fwiw)

Signed-off-by: Dan Scott <dan@coffeecode.net>
Merge pull request #13 from dbs/enumeration2

List enumerated types for MedicalEnumeration - adds a subClassOf relationship to Enumeration, which allows us to know that instances should be listed.
Merge pull request #20 from dbs/datamodel_docs

Fix typo in docs/datamodel and make style improvements
Merge pull request #19 from dbs/gs_salinger_markup

Fix markup error in Salinger example (docs/gs.html)
added
       <span>Subclass of: <a property="rdfs:subClassOf" href="http://schema.org/Enumeration">Enumeration</a></span>
... to DrugCostCategory.

See also
https://github.com/rvguha/schemaorg/pull/14
https://github.com/rvguha/schemaorg/pull/13
Merge branch 'master' of https://github.com/rvguha/schemaorg
Each MedicalEnumeration is now also explicitly asserted to be an Enumeration.
This is because our site code does not currently do type hiearachy reasoning when
deciding whether to list the instances of an enumeration.
Adding a set of examples contributed from Google.
Acknowledged the collaboration with Stack Exchange on Question/Answer types.
TheaterEvent example should show under Event too.
Updated the description for flightNumber.
Restoring some { braces to Action examples that were lost when
moving // comments into <!-- --> comments.
Fix many typos.

primarly -> primarily
Enerygy -> Energy
automimmune -> autoimmune
theatre -> theater
fulfilment -> fulfillment
progam -> program
toystore -> toy store
pawnstore -> pawn store
existance -> existence
organiser -> organizer
organisation -> organization
spacedelimited -> space delimited
Ethopian -> Ethiopian
Add note about spelling
Improve description of 'keyword' property using Dan Scott's suggestion.

http://lists.w3.org/Archives/Public/public-vocabs/2014May/0226.html
Merge pull request #21 from vholland/master

Updated the description for flightNumber.
Added Airport > icaoCode property.