1) Add a new top level "Makefile.am" target "make embedded-test".

2) Fix a syntax error (bad merge) in "netware/Makefile.am".


Makefile.am:
  Add a new "make" target "embedded-test" so that it is easier 
  to test the "embedded server" ("libmyslqd").
  Make it "phony".
  
  Use it via a sub-make within "test-bt" to avoid code duplication.
netware/Makefile.am:
  Cleanup: Macros "BUILT_SOURCES" and "CLEANFILES" should be defined only once.