Formatting for nested indentations in Table of Contents
Edited Section 2.2.2 for clarity, per Heather Walls' suggested technical edits.
Edited Section 2.3 as identified in ADL review 18 April.
Merge pull request #1 from adlnet/master

Updating to current
Made Changes to the 3.0 Definitions Section

Fixed typos in TCAPI,MUST/SHOULD/MAY, and IFI tags and a couple redundancies in definitions.  

Renamed Learning Activity Provider to just Activity Provider as we don't have a common pattern for learning experiences, etc. throughout.  

Shortened some definitions to lessen "fluff".  The sections themselves provide more information.  

Re-defined activity to move away from "thing".  Confusing in the definition and never clarified later.  Used with Verb and Actor, which are introduced.

Updated URI to IRI.  Kept language.  I'm not as familiar with IRIs, so verify the meaning still works.

Completely re-defined LMS.

Removed "State" definition as it was the only API mentioned.  

Removed references to sections as it seems backwards for the definitions to refer to the document.
Update xAPI.md
Note that CORS mode doesn't support attachments

Resolves: https://github.com/adlnet/xAPI-Spec/issues/178
Update xAPI.md

Reverted to original definition of Activity.  Changed capitalization within the definition, but is otherwise the same.
Merge pull request #215 from andyjohnson/master

Updated Section 3.0 Definitions
Merge pull request #214 from bscSCORM/xdom

Note that CORS mode doesn't support attachments
Merge pull request #212 from aaronesilvers/master

Formatting for Table of Contents and Technical Edits
Formatting linebreaks in MarkDown after anchors for proper display.
Technical edits, formatting and clarifications concentrated on Section 7.0 Data Transfer
Merge pull request #217 from aaronesilvers/blaster

Edits concentrating on Section 7.0
Completing first round of identified technical edits from Heather Walls, ADL
minor corrections
removing special characters -- NO MORE EDITING IN MICROSOFT WORD, PPL
Addressing special characters still present in line 3033.
Merge pull request #218 from aaronesilvers/master

Completing first round of technical edits
Merge pull request #2 from adlnet/master

Andy getting re-synced