deep copy(3);
deprecate old point classes  (ucar.nc2.dt)
Merge remote-tracking branch 'origin/4.5.2' into 4.5.2
Change harmless warning to debug level log message.
Fixed issue with Unicode characters.
Merge branch '4.5.2' of https://github.com/Unidata/thredds into 4.5.2
fixed broken link to 4.4 jnlp with reference to current
Merge branch '4.5.2' of https://github.com/Unidata/thredds into TDS-567
Insert next version of dap4 code.
Filter code needs more tests.
start
Merge branch 'signell' of https://github.com/Unidata/thredds into signell