#537 Implements a new lookup mechanism with priorities.
#537 Add test
Merge branch 'master' of https://github.com/rsdn/nemerle into LookupImprovement
Update test
Improve names lookup.
Do not choose name from aliases when more than one name is found.
Merge pull request #541 from rsdn/LookupImprovement

Lookup improvement
INPC work
Merge branch 'master' of github.com:rsdn/nemerle
Merge branch 'master' of github.com:Stitchous/nemerle