Add screenshots as a Git submodule (#86)

diff --git a/.gitmodules b/.gitmodules
new file mode 100644 (file)
index 0000000..2df3ed9
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,4 @@
+[submodule "screenshots"]
+       path = tests/screenshots
+       url = https://github.com/vaadin/vaadin-screenshots.git
+       branch = 7.7

diff --git a/tests/screenshots b/tests/screenshots
new file mode 160000 (submodule)
index 0000000..9edab53
--- /dev/null
+++ b/tests/screenshots
@@ -0,0 +1 @@
+Subproject commit 9edab532dd863ff214ed40e8db7ee875ca21095b