use new Git::config_path() for aliasesfile

diff --git a/RelNotes b/RelNotes
index c301f4c580dbf43de0def9cee43d1eebc1c02c91..6372427426d80b01b03437fd1a55fd412fb8f75d 120000 (symlink)
--- a/RelNotes
+++ b/RelNotes
@@ -1 +1 @@
-Documentation/RelNotes/1.7.6.2.txt
\ No newline at end of file
+Documentation/RelNotes/1.7.7.txt
\ No newline at end of file