Speed up the verify page by limiting results

The verify page is falling over with alarming regularity. This commit
forces each of the 4 data sources to only fetch 50 results. This could
lead to a bit of an awkward user experience but it is certainly better
than the status quo of a 502 timeout error.
fixed bad username resolve
fix username resolve
fix username resolve
Update README.md

It's been mentioned that OTM v1.2 is best run atop Django 1.3. As such, django-pipeline version 1.1.27 needs to be used
Update speciesimport.py

Remove hard-coded "OpenTreeMap" from "treemap.models"
Fix syntax errors