named relations
some docs for relationship macros
relationship name can be passed to with macro
whitespaces removed
whitespaces removed from test/core
Merge branch 'named_relationships' into no_whitespaces_and_named_relationships_

Conflicts:
	src/korma/core.clj
added tests for named relationships
Merge remote-tracking branch 'sebastiansen/no_whitespaces_and_named_relationships'

Conflicts:
	src/korma/core.clj