- this is a rough first pass at making the oxygen Modules page more consistent and user navigable
as a handy index into getdns
- I think a further re-org is needed in a later update, also haven't touched getdns_extra.h yet
- Added a few functions descriptions too, but still many functions without comments... a WIP
- Updated man page for context_create with multi-threaded instructions as a short term fix
+ small updates to text
- change "File Descriptor Polling" to "Build-in Event loop"
and removal of "Custom Event Loop Integrations" section from libgetdns.