* "git bundle unbundle" outside a repository triggered a BUG()
unnecessarily, which has been corrected.
+ * The code forgot to discard unnecessary in-core commit buffer data
+ for commits that "git log --skip=<number>" traversed but omitted
+ from the output, which has been corrected.
+
+ * "git verify-pack" and "git index-pack" started dying outside a
+ repository, which has been corrected.
+
+ * A corner case bug in "git stash" was fixed.
+
Also contains minor documentation updates and code clean-ups.