Add two more check to x.chk_env a) make sure host name have at least one dot b) add a http test
Add two more check to x.chk_env
a) make sure host name have at least one dot
b) add a http test

bk: 39466063LfKperUt13MbGKJrzx5juA
bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper