[Wrtc] wt-3.0.4-wrtc

[Stavros Tsiakkouris, 5B4AFM]

It seems that "wt-3.0.4-wrtc" does not read the cty_wt.dat file. This is not
a problem with "wt-3.0.3-wrtc" and older versions.   

73, Stavros 5B4AFM