added NZX
fixed Mega's twitter account
added Affinity
linking to correct enspiral tweet
Merge pull request #1 from joshuavial/enspiral-fix

linking to correct enspiral tweet
Merge remote-tracking branch 'mainline/master'
regen
Add the Crown Research Institutes.

Two of these orgs appear not to have twitter accounts.
sort the alphabetically, as per the manual
Merge pull request #3 from stuartyeates/newzealand

7 CRIs, sorted
Merge remote-tracking branch 'origin/newzealand'
regen
commented out many of the smaller companies
regen
added date to bnz