* cahuge/master:
replace caLimitArray with EPICS_CA_AUTO_MAX_ARRAY_BYTES
ca: fix export caLimitArray on win32
rsrv: export variable caLimitArray
rsrv: optional max_array_bytes
cas: simplify buffer alloc
ca: large array free list is optional
rsrv: support larger than max. array bytes
pcas: support larger than max array bytes
ca: support alloc larger than max array bytes