Basic pagination
Merge branch 'master' of https://github.com/itskathylam/metagenomics

Conflicts:
	mainsite/templates/antibiotic_all.html
	mainsite/templates/contig_all.html
	mainsite/templates/orf_all.html
	mainsite/templates/substrate_all.html
	mainsite/views.py
	metagenomics/urls.py
Paginate list views