Add foreign keys to database

Changing the referrer value for the root admin from 0 to NULL to make
the foreign key check work.

Signed-off-by: Florian Pritz <bluewind@xinu.at>

1 files changed, 1 insertions, 1 deletions

diff --git a/INSTALL b/INSTALL
index 3ca7bbe74..f63ee8e74 100644
--- a/INSTALL
+++ b/INSTALL
@@ -23,4 +23,4 @@
 
 * Run the following SQL command in your database:
    insert into users (username, password, email, referrer)
-   values ("your_name", "hash_from_above", "you@foo.com", 0);
+   values ("your_name", "hash_from_above", "you@foo.com", NULL);