Relative imports should be working again even when used in more special occasions. Fixes #973

There are more fixes needed. Some things are just very unclean and might lead to further bugs.

jedi/evaluate/imports.py

@@ -213,7 +213,7 @@ class Importer(object):
 
         if level:
             base = module_context.py__package__().split('.')
-            if base == ['']:
+            if base == [''] or base == ['__main__']:
                 base = []
             if level > len(base):
                 path = module_context.py__file__()

test/completion/__init__.py

@@ -4,6 +4,5 @@ some_variable = 1
 
 
 from . import imports
-# TODO this is not correct
-#? 
+#? int()
 imports.relative()