Cmdline arg -c sets main configuration file (old paths.conf) instead of dir containing it

It has been notified that current configuration system is difficult to
understand and to use, so it has been envisioned to refactor it a bit.
The idea is that the user passes a -c path/to/main.conf file, which in
turn contains whatever osmo-gsm-tester main settings supports (basically
what old paths.conf used to be, plus some files harcoded to the same -c
directory are now configurable through the main configuration file).

Change-Id: Ieca65b71b543c44cfcec8e83efd0fe053c432e55
diff --git a/doc/examples/4g_srsLTE/README.md b/doc/examples/4g_srsLTE/README.md
index b577035..09af755 100644
--- a/doc/examples/4g_srsLTE/README.md
+++ b/doc/examples/4g_srsLTE/README.md
@@ -1,13 +1,14 @@
 This a sample 4G test suite configured and ready to use srsLTE stack.
 The only thing missing is a trial dir containing binaries.
 
-You can point osmo-gsm-tester.py at this config using the '-c $DIR' command line
-argument, where DIR is the directory path where this README file resides.
+You can point osmo-gsm-tester.py at this config using the '-c $DIR/main.conf'
+command line argument, where DIR is the directory path where this README file
+resides.
 
 If you have your trial with binary tar archives in ~/my_trial
 you can run the suite for example like this:
 ```
-osmo-gsm-tester.py -c $DIR ~/my_trial
+osmo-gsm-tester.py -c $DIR/main.conf ~/my_trial
 ```
 
 Alternatively you can setup this example as default config for your user by
@@ -19,4 +20,4 @@
 
 A ./state dir will be created to store the current osmo-gsm-tester state. If
 you prefer not to write to $DIR, set up an own configuration pointing at a
-different path (see paths.conf: 'state_dir').
+different path (see main.conf: 'state_dir').
diff --git a/doc/examples/4g_srsLTE/main.conf b/doc/examples/4g_srsLTE/main.conf
new file mode 100644
index 0000000..b810519
--- /dev/null
+++ b/doc/examples/4g_srsLTE/main.conf
@@ -0,0 +1,6 @@
+state_dir: '/var/tmp/osmo-gsm-tester/state'
+suites_dir: './suites'
+scenarios_dir: './scenarios'
+default_suites_conf_path: './default-suites.conf'
+defaults_conf_path: './defaults.conf'
+resource_conf_path: './resources.conf'
diff --git a/doc/examples/4g_srsLTE/paths.conf b/doc/examples/4g_srsLTE/paths.conf
deleted file mode 100644
index 27c5818..0000000
--- a/doc/examples/4g_srsLTE/paths.conf
+++ /dev/null
@@ -1,3 +0,0 @@
-state_dir: '/var/tmp/osmo-gsm-tester/state'
-suites_dir: './suites'
-scenarios_dir: './scenarios'