fix documentation pass 1
Allergies standardized.
Fix encounters.
Immunizations (and email fix).
Fix procedures.
Fix Vitals.
Fix results.
Big push.

Finishes implementation, and rolled in a few bug fixes.
Add provider/org identifiers.
Merge pull request #18 from amida-tech/coding

Coding enhancements.
Merge branch 'master' into afsin

Conflicts:
	lib/parser/ccda/sections/vitals.js (master version is chosen)