Merge pull request #216 from mossprescott/minor

remove unneeded dependency on scalaz-task
interpret table names in context of mountPath and basePath (Fixes #198)
cleanup and respond to comments

factor out Path.from and rename `relativeTo` to `rebase`

update README

use Trampoline to avoid stack overflow
Merge pull request #217 from mossprescott/198-interpret-paths

interpret table names in context of mountPath and basePath (Fixes #198)
update for MOVE and add a note on output paths