fix #1309 - lein.bat now honors HTTP_CLIENT env var
Merge pull request #1312 from kumarshantanu/master

fix #1309 - lein.bat now honors HTTP_CLIENT env var
Add ^:skip-aot as default for app template.

Elaborate more on when ^:skip-aot will disable compilation. Would be
great to cut out a lot of that documentation for 3.0.0.
Fix a bug where specified repl host was ignored.
Remove usage of soon-to-be legacy API in nrepl.