Disable ITs for Windows, since it doesn't have a gpg-executable

git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk@1399394 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/it/alternative-secret-keyring/invoker.properties b/src/it/alternative-secret-keyring/invoker.properties
new file mode 100644
index 0000000..aed380d
--- /dev/null
+++ b/src/it/alternative-secret-keyring/invoker.properties
@@ -0,0 +1,2 @@
+# Windows doesn't has a gpg-executable

+invoker.os.family = !windows

diff --git a/src/it/no-main-artifact/invoker.properties b/src/it/no-main-artifact/invoker.properties
new file mode 100644
index 0000000..aed380d
--- /dev/null
+++ b/src/it/no-main-artifact/invoker.properties
@@ -0,0 +1,2 @@
+# Windows doesn't has a gpg-executable

+invoker.os.family = !windows

diff --git a/src/it/sign-release/invoker.properties b/src/it/sign-release/invoker.properties
new file mode 100644
index 0000000..aed380d
--- /dev/null
+++ b/src/it/sign-release/invoker.properties
@@ -0,0 +1,2 @@
+# Windows doesn't has a gpg-executable

+invoker.os.family = !windows