removed obsolete and unused .rst files
consolidated some redundant files
removed unused images
consolidated FAQ into single document
tidied TOC index
consolidated sdk page to link to node and java docs
updated the GS to link to beta version of bootstrap.sh
updated short URL

Change-Id: I880c1cfdec98cdef1e310906bb4911c1eae6c828
Signed-off-by: Christopher Ferris <chrisfer@us.ibm.com>