Incremented version number to 1.7.1.

git-svn-id: http://music21.googlecode.com/svn/trunk@3708 5c16147e-a200-11de-b0cc-ab0ad15e60d0
Improved ReST documentation.

git-svn-id: http://music21.googlecode.com/svn/trunk@3709 5c16147e-a200-11de-b0cc-ab0ad15e60d0
Converted metadata overview into users guide chapter.

git-svn-id: http://music21.googlecode.com/svn/trunk@3710 5c16147e-a200-11de-b0cc-ab0ad15e60d0
ignored usersGuide files restored...

git-svn-id: http://music21.googlecode.com/svn/trunk@3711 5c16147e-a200-11de-b0cc-ab0ad15e60d0
fixed top...

git-svn-id: http://music21.googlecode.com/svn/trunk@3712 5c16147e-a200-11de-b0cc-ab0ad15e60d0
Improved module reference file naming logic.

git-svn-id: http://music21.googlecode.com/svn/trunk@3713 5c16147e-a200-11de-b0cc-ab0ad15e60d0
New testDocumentation.py -- added the image files to svn...

git-svn-id: http://music21.googlecode.com/svn/trunk@3714 5c16147e-a200-11de-b0cc-ab0ad15e60d0
Improved automatic documentation writing.

git-svn-id: http://music21.googlecode.com/svn/trunk@3715 5c16147e-a200-11de-b0cc-ab0ad15e60d0
Improved function cross-references.

git-svn-id: http://music21.googlecode.com/svn/trunk@3716 5c16147e-a200-11de-b0cc-ab0ad15e60d0
modified documentation/library/extensions.py to use #_DOCS_SHOW and #_DOCS_HIDE on .rst files.  Fixed most errors in UsersGuide chapter 11.

git-svn-id: http://music21.googlecode.com/svn/trunk@3717 5c16147e-a200-11de-b0cc-ab0ad15e60d0