Updates dotfiles: a1544fc Updates awesome, xsession

diff --git a/dotfiles b/dotfiles
index 4283a52ad0e0770c35bc1aa65923cd42d9267de0..a1544fc4a52822a9cc26bb620acfe5fa28db0c3e 160000 (submodule)
--- a/dotfiles
+++ b/dotfiles
@@ -1 +1 @@
-Subproject commit 4283a52ad0e0770c35bc1aa65923cd42d9267de0
+Subproject commit a1544fc4a52822a9cc26bb620acfe5fa28db0c3e