`reduce_path/1` -> `canonical_path/1`
`relative_path/2` -> `path_from_ancestor/2`

Terms is already a list

this test almost certainly only fails under very limited circumstances
limiting it's utility. it is known to fail with some versions of rebar3
when this test is run via `rebar3 ct --cover`

replace noinput with noshell so providers that ask for input work

add tests

parse versions in deps tree output and support checkouts

use full path of apps for priv files included in escript

Fixes compiling yaws, which has an .app.src.script file

cover compile beams compiled for ct/eunit seperately from beams compi…

fixes #788

check checksum of rebar3 download in local_upgrade provider

add 'local install' and 'local upgrade'

fix dialyzer warnings

fix run_all_hooks call for ct provider, no need to pass appinfo

`rebar3 path' provider

support updating of per app info by hooks

upgrade providers, new version gives error message for bad provider dep

hooks/artifacts are always run/resolved from an app unless at top of umbrella

Fix cover_spec options for ct

delete and prepend code path instead of replacing, fixes #770

add current_app attribute for setting before calling hooks

Fix #744: Allow _checkouts dep to override pkg dep not in registry

move state into app_info