Added reading options from a config file, unpacking rulesets and email notifications to rules-updater.pl. See #280.

tools/rules-updater-example.conf

@@ -0,0 +1,23 @@
+# This is an example configuration to be used with ruleset-updator.pl -c
+
+# The repository URI.  
+RepositoryURI     http://username:password@www.example.tld/repository/
+
+# Where to download the rulesets to
+LocalRepository   /path/to/repository
+
+# Where to unpack the rulesets (if Unpack is true)
+LocalRules        /path/to/repository
+
+# What version (or version prefix) to use
+#Version           1.5
+
+# Should we unpack the ruleset to LocalRules?
+Unpack            True
+
+# Email update notifications
+#NotifyEmail       "modsec-admin@example.tld, someone@example.tld"
+#NotifyEmailFrom   "ModSec Rules Updater <modsec-updater@example.tld>"
+
+# Output lots of debugging info?
+Debug             False