Audacity_2_0_6

git-svn-id: http://audacity.googlecode.com/svn/audacity-src/trunk@13355 47890b92-0858-11df-a26f-8b716316a5bc
Oops, removing misplaced tag for 2.0.6.

git-svn-id: http://audacity.googlecode.com/svn/audacity-src/trunk@13356 47890b92-0858-11df-a26f-8b716316a5bc
Changes after 2.0.6 release. 

git-svn-id: http://audacity.googlecode.com/svn/audacity-src/trunk@13359 47890b92-0858-11df-a26f-8b716316a5bc
Change numbering to incremental per section, for easier referral. 

Some slight rewordings. 

git-svn-id: http://audacity.googlecode.com/svn/audacity-src/trunk@13360 47890b92-0858-11df-a26f-8b716316a5bc