Added Xrm.Page API for Dynamics CRM 6.1.1

Two files:  xrm.d.ts, for the Xrm.Page API, and
clientglobaldcontext.d.ts for importing ClientGlobalContext.js.aspx as a
script resource in HTML Web Resources.
Applied Generics to accessors

Improved Xrm.Page.getAttribute(string) and Xrm.Page.getControl(string)
signatures with a type parameters, to better cast returns into an
expected Attribute or Control derivative.
Encoded character fix

The file was originally ASCII encoded, and after I switched the encoding
to UTF-8, the quotation characters were garbled.  Replaced.  Also typed
FormOpenParameters indexed-value component away from 'any'.
Special-signature refactor

Refactored definition file to include special-signature definition on
relevant methods.
Fixed special-signature code docs

Adjusted the code documentation for the special-signature methods that
were not properly updated in the last check-in.
Elevated FormOpenParameters

Moved FormOpenParameters interface to Xrm namespace, from Xrm.Utility.
Refactored FormOpenParameters

Recognizing the need to specify a unique parameter format for
Xrm.Utility.openEntityForm as it contrasts from the parameters accepted
via main.aspx, I put Xrm.Utility.FormOpenParameters back, and
established Xrm.FormOpenParameters and Xrm.ViewOpenParameters, to better
describe the key/value pairing anticipated by main.aspx.
Added DialogOpenParameters and ReportOpenParameters

Added two new parameter interface declarations to assist with the matter
of opening CRM components with a URL.  Enhanced documentation on all
such interfaces, and moved to Xrm.Url namespace, after thinking better
about their location and specificity.
Removed untested Xrm.Application reference.

This may get restored at a later time, when more completely discovered
and fleshed-out.
Fixed header file for Travis
Added trailing slash to GitHub link

Just in case Travis wants to complain about this too...
Repeated fixes for Travis testing
Added an "s", for Travis.
Added reference path, since Travis assumes none.
Code commenting fixes

Fixed spelling and accidental encoding within code comments.
Merge remote-tracking branch 'origin/master'

Conflicts:
	CONTRIBUTORS.md
	xrm/clientglobalcontext.d.ts
	xrm/xrm.d.ts