PR 1782/cpukit
* porting/taskcontext.t: Disable deferred FPU context switches when SMP
is enabled. Per code tracking of deferred contexts is not
implemented.
* SUPPORT, LICENSE: New files.
* Numerous files touched as part of merging the 4.5 branch
onto the mainline development trunk and ensuring that the
script that cuts snapshots and releases works on the documentation.