paths: have one common parent dir /var/tmp/osmo-gsm-tester

In the example config and the jenkins scripts, use paths below common parent
dir /var/tmp/osmo-gsm-tester.

1. example: put the state dir in /var/tmp/osmo-gsm-tester/state, instead of in
the config dir like /etc/osmo-gsm-tester.

2. contrib scripts: place trials in /var/tmp/osmo-gsm-tester/trials, and to
move into place atomically, use /var/tmp/osmo-gsm-tester/.prep-trials as
temporary location.

The OsmoGSMTester manual is currently also being updated to setup these paths,
with /var/tmp/osmo-gsm-tester owned by a common group and having group-sticky
as well has group-writable access rules.

Change-Id: I2961e9d1d9b14859b886058b54ffcb36f4d88bc1
diff --git a/contrib/jenkins-run.sh b/contrib/jenkins-run.sh
index e82f562..7d796b5 100755
--- a/contrib/jenkins-run.sh
+++ b/contrib/jenkins-run.sh
@@ -8,8 +8,8 @@
 
 osmo_gsm_tester_host="$OSMO_GSM_TESTER_REMOTE_MAIN_UNIT"
 osmo_gsm_tester_src="${OSMO_GSM_TESTER_REMOTE_SRC:-/usr/local/src/osmo-gsm-tester}"
-osmo_gsm_tester_dir="/var/tmp/osmo-gsm-tester"
-tmp_dir="/var/tmp/prep-osmo-gsm-tester"
+osmo_gsm_tester_dir="/var/tmp/osmo-gsm-tester/trials"
+tmp_dir="/var/tmp/osmo-gsm-tester/.prep-trials"
 
 #trial_name="$NODE_NAME-$BUILD_TAG"
 trial_name="trial-$BUILD_NUMBER"