If no script, default is null, not -1. Fixes #265

Includes test and exposing the command run for debugging.
1.0.13
Implement tests for supported --delay argument values as integer, float, and time specifiers
Added milliseconds support for --delay option, using float and time specifier (ms) values
Document the milliseconds support for --delay option
Merge pull request #276 from theredcoder/master

Support milliseconds for --delay option
Add gulp-nodemon link. Also correct small typo.
Merge pull request #277 from mikemaccana/patch-1

Add gulp-nodemon link. Also correct small typo. [skip ci]
Fix #274. If app found in package, append to end of cmd
Small lint errors
Fixes `nodemon -w` being blank and defaults to *.*
Allows a rule to be empty (i.e. `nodemon -w`)
Merge pull request #282 from remy/fix/274

Fix/274
Fixed #281. Can now watch with . and .*
Merge pull request #283 from remy/fix/281

Fixed #281. Can now watch with . and .*
Attempting to replicate bug
1.0.14
fix couple typos
Merge pull request #290 from ZombieHippie/patch-1

fix couple typos
Missing a comma.