include TESTnfs_func in weekly experimental
DataGetter::Get becomes iterative similar to MaidNodeNfs::Get -- using GetHandler
Added network test target and changed targets to match new test naming conventions.
catch proper exception, fix the segmentation fault of no_such_element
Merge branch 'network_tests' into next
Renamed weekly test executable.
Merge branch 'next' into response_sig

Conflicts:
	include/maidsafe/nfs/client/data_getter.h