PERF: Don't compute unicode names until they're needed....
PERF: Don't compute unicode names until they're needed.
This commit renames `IPCompleter._names` to ``_unicode_names`` and uses
traitlets default machinery to defer its initialization until first access.
Previously, initialization was deferred until the first call to
fwd_unicode_names, but that was still called on the first completion attempt,
which caused about a .5 second lag on the first completion attempt on
my (relatively powerful) machine.
