Only apply triggers for the master branch (#248)

* Only apply triggers for the master branch

* Restoring daily, rather than hourly, cron

Jenkinsfile

@@ -10,11 +10,11 @@ def capabilities = [
 pipeline {
   agent any
   libraries {
-    lib('fxtest@1.9')
+    lib('fxtest@1.10')
   }
   triggers {
-    pollSCM('H/5 * * * *')
-    cron('H H * * *')
+    pollSCM(env.BRANCH_NAME == 'master' ? 'H/5 * * * *' : '')
+    cron(env.BRANCH_NAME == 'master' ? 'H H * * *' : '')
   }
   options {
     ansiColor('xterm')