Release Notes/suite3270/4.0alpha4

Improvements

 * Extended the run-time settability of model, oversize, termName and nopSeconds to the entire x3270 family. (Note that model and oversize will still return an error when set on x3270, c3270 and wc3270.)
 * Renamed autoscale to x3270a.
 * Made the x3270 prompt on POSIX handle color correctly, getting rid of the hacky colorPrompt resource.
 * Extended the -set command-line option to accept a value.

Bug fixes

 * Improved the error message display when the connection to a proxy server fails.
 * Corrected the output of Query(TerminalName query) when oversize is set.
 * Fixed a buffer overrun issue in x3270if.
 * Fixed copying (copy/paste) of UTF-8 characters in x3270.
 * Fixed the host field in the prompt string in the s3270 protocol.
 * Fixed redundant file generation in ./configure.
 * Restored the ScreenCurSize and ScreenMaxSize queries, marking them as deprecated rather than deleted.