project: ignore build-local and dirty submodules

Change-Id: I55e81fb9e6e1ecf8862b614f70373acfc5af6cfd
Reviewed-by: Kateryna Kostiuk <kateryna.kostiuk@savoirfairelinux.com>

.gitignore

@@ -53,4 +53,5 @@ Makefile*
 
 build/
 lib
+build-local/
 .DS_Store

.gitmodules

 [submodule "sparkle/Sparkle"]
 	path = sparkle/Sparkle
 	url = https://github.com/sparkle-project/Sparkle.git
+	ignore = dirty
 [submodule "libqrencode"]
 	path = libqrencode
 	url = https://github.com/fukuchi/libqrencode.git
+	ignore = dirty