UML25 — Four typos

1. 13.4 Classifier Descriptions, Association Ends, p315
"Behaviosr" -> "Behavio(u)r"

2. 7.4.3 Semantics, Namespaces, p32
"A namespace may also import NamedElements ...". "namespace" should be capitalised ("Namespace").

3. 7.8 Classifier Descriptions, ElementImport [Class], Attributes, p49
"whetherthe" -> "whether the".

4. 9.9 Classifier Descriptions, Operations, p165
"is the same or a subtype as" -> "is the same or a subtype of".

1. “Behaviosr” no longer appears in the text. No change.
2. The problem remains: fix it.
3. “whetherthe” no longer appears in the text. No change.
4. “is the same or a subtype as” appears in ValueSpecification::isCompatibleWith and Property::isCompatibleWith;
fix it.