* Work with long filenames on cygwin-1.7
* Work with unicode filenames/xml? on cygwin-1.7
* Port (fork?/branch?) for mingw native w32
* memory leak audit
* Continue to extend use of Ustr for string handling.
  - lib/confdata uses Ustr universally. Callers currently convert as needed.
  - low-hanging fruit for retrofitting:
    - lib/env
    - lib/tokenizer
    - lib/target
    - lib/util?
  - Somewhat harder
    - lib/confparse (string_buffer_t?)
    - lib/confparser
    - lib/launch
    - lib/checkX
  - Might not be worth the effort
    - src/run2_gpl
    - src/run2_main
    - src/checkX_main
* Once most of the library uses ustr for string handling, begin
  looking at how to allow UTF-8 strings and XML (e.g. avoid strlen
  and char* interfaces, etc).
