Changed all foursquare API endpoints from http to https, following the official docs recommendation

Conflicts:
	foursquare/foursquare.categories.xml
First version of the Infraero open table
minimalist readme
more examples and optional flight number
Corrected item path

Conflicts:
	brazil/correios/brazil.correios.encomendas.xml
added infraero table to brazil namespace
Added brazilian postcodes ceplivre table
Added ibge search table to find the ibge code for cities in Brazil
Renamed brazil ibge and ceplivre tables

Conflicts:
Revert "Invalid API", to apply fixes.

This reverts commit 032789e1e56039fb029ebbf272b705f782c2610f.