Windows escripts get cmd autogenerated

More fixes for bad calls to find_apps

REBAR_CONFIG impacts file project root only

Fix wildcard usage in rebar3 clean

The wildcard usage could fail on some OSes by being passed directly and
just not finding libs and erroring out

Bump cth_readable to 1.2.4

Fixes an issue where some skipped test suites could end up misreported
as the previous suite. See
https://github.com/ferd/cth_readable/issues/10

Add respect for src_dirs option in app_discover and app_info

This also patches up a problem for hooks when dealing with directories
with spaces in them, and reduces complexity of bootstrap file.

The finding of the file was done based on an assumed 'src' path which
may not be correct. This patch instead replaces the value with a lookup
in configured paths and returns the first that matches to an existing
file.

First find the rebar.config file, and if any data is found, check for
src_dirs config. If nothing is there or no app is found, default to src/

This makes rebar_prv_install_deps able to support more src_dir configs

This lets people who use custom directories layout without leaving the
.app.src in src/ to still see their app build.

use proper skips in compiler tests that use unavailable functions

Add support for global plugin-defined templates

Did not really know how to automate the testing for this, did it by
hand.

catch badarg exception from eunit in `rebar_prv_eunit`

fixes #1469

16.x is not available on chocolatey

Fix printing path with unicode names in prv_update

Allow exclusion of apps in cover

Adds a new option `{cover_excl_apps, Apps}` to exclude apps from coverage
analysis by name.

Add regression test for #1410

consider `ERL_COMPILER_OPTIONS` when recompiling

on 19.x forward the compiler should now take into consideration the value
of the environment variable `ERL_COMPILER_OPTIONS` when deciding whether
or not to recompile a module

The stable URL is for stable releases since 3.0.0

Addresses issue #1330

Survive EDoc crashes

Instead of a hard crash, display an error message indicating which app
failed.

We can't report the exact failure; only EDoc does it to stdout itself
and we can't capture it.

Pre/Post hooks are run properly despite the failure, as per escript and
compile providers.

Add manpage for rebar3

See template local install same builtin as escript

Fix `mv` on windows

and clean up a bit

to be roundtripped again to windows.

Requires changing a bunch of arguments for xerocopy since it
does not allow to rename while copying.

Lots of tests added

Fixed typos and grammar errors for CONTRIBUTING.md.