Add a wxFTP::Connect() overload taking a port number.
Also specify the default port (21) explicitly if resolving "ftp" service name
failed.
Closes#12145.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@64621 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Move SetPassword and SetUser implementations to wxProtocol to avoid code redundancy
Make const-correct various getters
Reorganize wxFTP docs
Move wxStringToStringHashMap to hashmap.h and document its existance
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@58137 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775