added randomising the tags to search for to get around some parts of the tag list being unchecked due to Mastodon instance API rate limits

tweak api calls to distributed them around instances to reduce likelihood of tripping per-instance rate limits

interim fix - use the we_timeastamp in place of the published time. Better solution, convert the published time into NZ time

fix bug related to time stamps based on publish time, which created an offset of 5 days (120hrs) rather than 12 hours and bump version to 0.4

changed the entity extracted from a Mastodon couchdb entry from content to text, the latter having HTML stripped out already

refactored config setting for options.json, renamed forums to forums-discourse.py and added a copy for community-discourse.py, deprecating discourse.py and forums.py

adjusted Discourse harvesters to be page-aware for topics with more than 20 posts... removed some debugging from Mastodon