Changed titles to make it a) more consistent, b) shorter for the sidebar
Removed lonely and needless section; added "cloud systems"
Implemented FATE#311576
Make title consistent
Splitted FAQ chapter into smaller pieces for easier consumption
Moved questions about maintenance times and changes into Overview section
Removed useless, confusing title
Implemented (described) FATE#312663: bootinclude packages support
Sync the configuration.xml example with current Studio code

This commit updates the configuration.xml example to be in sync with
current Studio code, namely these changes done lately:

  * We expose image type and version in the API (bnc#790914).
  * Users now usually have a UID.
  * We implemented SLMS integration in Onsite.
Escape directories used in the "helphelp" shell invocation

This prevents problems when using directory names containing spaces or
some shell metacharacters.
Describe /user/appliances/<id>/configuration/slms_ssl_certificate

This API was added as part of SLMS integration work.
Fixed FATE#309163: Image Adaptation for SLMS in Studio
Added how to configure your appliance to register in SLMS
Fixed bnc#795273: No documentation that describes PXE boot image deployments
Reviewed by Marcus
fix menu link to the Kiwi Import chapter

markup with three hash signs resulted in

  <a href="...url..."> </a>

(no text).
Converted FAQ to a subsection
Added FAQ & stub page for browser support policy.
Fixed bare URL
Fixed typo: protocoll -> protocol
Fixed bnc#795273#6, point 2
explicitly mention unsupported Aftp for SLE10
Fixed bnc#795273#7, point 1
Added alternatives to TFTP deployment (most text is taken from the KIWI documentation, slightly changed)