Pre-release of v0.3.2

Install on need verify package (#94)

* read and write add-from-bower from local package set

* make add-from-bower write to local package set

updates lts to use newer aeson-pretty to use trailing newline formatting

* make add-from-bower write to local package set

also adds a newer aeson-pretty to extra-deps to use trailing newline
formatting

* have verify pull dependencies per verifying package

as the installation step checks to not reinstall existing packages,
calling it multiple times with previously installed packages works fine.

* concurrently traverse the dependencies for verify