apache-frontend: Fix name clash in etc/service

Another part wrote to etc/service/frontend_apache, which resulted of
impossibility to start apache after instance is restarted.

software/apache-frontend/buildout.hash.cfg

@@ -18,7 +18,7 @@ md5sum = f686f765e55d1dce2e55a400f0714b3e
 
 [template-apache-frontend]
 filename = instance-apache-frontend.cfg
-md5sum = eb2143422d824e96abe99619f11d3523
+md5sum = ec825cba3ea775452716f1da7cd2e549
 
 [template-apache-replicate]
 filename = instance-apache-replicate.cfg.in

software/apache-frontend/instance-apache-frontend.cfg

@@ -248,10 +248,7 @@ extra-context =
 [apache-frontend]
 recipe = slapos.cookbook:wrapper
 command-line = ${apache:location}/bin/httpd -f $${dynamic-apache-frontend-template:rendered} -DFOREGROUND
-wrapper-path = $${directory:service}/frontend_apache
-wait-for-files =
-	       $${ca-frontend:cert-file}
-	       $${ca-frontend:key-file}
+wrapper-path = $${directory:bin}/frontend_apache
 
 [not-found-html]
 recipe = slapos.cookbook:symbolic.link
@@ -315,7 +312,7 @@ crl = $${directory:ca-dir}/crl/
 recipe = slapos.cookbook:certificate_authority.request
 key-file = $${cadirectory:certs}/apache_frontend.key
 cert-file = $${cadirectory:certs}/apache_frontend.crt
-executable = $${directory:service}/frontend_apache
+executable = $${apache-frontend:wrapper-path}
 wrapper = $${directory:service}/frontend_apache
 key-content = $${instance-parameter:configuration.apache-key}
 cert-content = $${instance-parameter:configuration.apache-certificate}