release v1.0.4

Fix various typos (thanks gogolok, anthonyfok, benoitmasson, marccampbell)
Fix same prefix bug
Add support to migrate from gdm
Add support to ignore packages
Ensure GIT tests are more reliable
Fix issue with copying license
Don't add own path as origin
Add "go tool" wrapper
Another origin fix with update

help/version.go

@@ -4,4 +4,4 @@
 
 package help
 
-var version = "v1.0.3"
+var version = "v1.0.4"