Added function to iterate over pairs in a container
Merge branch 'master' of https://github.com/mlund/faunus
Templated various functions with taking `Space` as argument
Merge branch 'master' of https://github.com/bjornstenqvist/faunus into bjornstenqvist-master

Conflicts:
	include/faunus/analysis.h
Fixed tabulation unitcheck failure. Doc cleanup.
Merge pull request #4 from mlund/master

merge