Change the text regarding the PlantShare release.
Change again the text regarding the PlantShare release.
Add a section for Ask the Botanist on the PlantShare main page. (#351)
Add a navigation link and blank page for Ask the Botanist. (#351)
Show some PlantShare navigation links even when logged out.

Correct the list of links that should be shown to users even when
logged out (or not a member yet) of PlantShare. (#351)
Add a note explaining why a PlantShare link is shown.

Without this note I had forgotten about the intent of this and
almost thought it was a bug. (#351)
Merge branch 'master' of github.com:newfs/gobotany-app