NotEmpty contract macro
NotNullOrEmpty macro
fixed line endings
NotNullOrEmpty macro
Merge branch 'master' of github.com:pekabon/nemerle
1. Refactoring, using HResult instead of parsing exception message

2. One more FileLoadException case support
3. using ReflectionOnlyLoad for exception cases (non-blocking)
Merge pull request #1 from pekabon/master

some changes