doc/manual: Refactor, rewrite, improve and update most of the User Manual

* Some TODOs are added as comments which actually require code changes.
  These are details which showed up as incongruences or missing bits
  while writing the documentation for them.

* Some sections are introduced but still waiting to be writen soon:
** Debugging section
** Docker Setup section
** Ansible Setup section
** Troubleshooting (add jenkins red cross button sending kill -9)
** resources.conf attribute list needs to be converted to a table

* Device related setup needs to be updated and extended
* Parametrized scenarios need to be documented
* 4G resources documentation needs to be added.

Change-Id: Ifc2a3c74d45336cc988b76c0ff68a85311e4dd40
diff --git a/.gitignore b/.gitignore
index 47e9f86..f281be1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -19,6 +19,6 @@
 doc/manuals/*__*.png
 doc/manuals/*.check
 doc/manuals/generated/
-doc/manuals/osmomsc-usermanual.xml
+doc/manuals/osmo-gsm-tester-manual.xml
 doc/manuals/common
 doc/manuals/build