cmd/monfront - import monfront from separate repository

This is the import from the separate monfront repository. The history
could not be imported, but this should suffice.

1 files changed, 1 insertions, 0 deletions

diff --git a/schema/20190528.sql b/schema/20190528.sql
new file mode 100644
index 0000000..f4d6934
--- /dev/null
+++ b/schema/20190528.sql
@@ -0,0 +1 @@
+alter table active_checks add state_since timestamp with time zone default now() not null;