Prep for 0.5.3

Prepare 0.5.2 release

Fix #30 by rendering empty .keep file in resources folder

seancorfield -> boot-clj

Merge branch 'master' of github.com:seancorfield/boot-new

Fix #22 in 0.4.6 by adding Leiningen release stub

Remove test from source-paths for template

This will allow a generated template to work out of the box (since no
test files are generated for that template).

Prep for 0.4.4

Release 0.4.3 support leiningen-version #19

0.4.2 to match the PR submitted to Boot

This makes the 0.4.2 release identical to what is currently submitted as
an integration Pull Request that would add `boot new` to Boot's core.