Avoid unnecessary warnings about matchers

[miikka]

Having overlapping file patterns causes warnings like this:

WARN [watcher]: All files matched by "/Users/miikka/code/doo/example/out/**/*.js" were excluded or matched by prior matchers.
WARN [watcher]: All files matched by "/Users/miikka/code/doo/example/out/*.js" were excluded or matched by prior matchers.

The warnings are harmless, but it's not immediately obvious. This patch removes the unnecessary patterns to get rid of the warnings.

[bensu]

Looks good to me!