ignore nuget.exe

Change-Id: I0a61b34abad18e61f51565e76de358b011570ded
diff --git a/.gitignore b/.gitignore
index bc96018..0b993da 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,4 +12,5 @@
 *.dll
 .gitignore
 *.qm
-build/
\ No newline at end of file
+build/
+nuget.exe