bash-completion: add dump_spec=1

rebar.config.sample: fix escript_emu_args sample

Makefile: fix 'clean' and add 'distclean'

Change zsh completion script

bash-completion: add generate-appups

* fix 'clean' to remove .eunit (not .test)
* add 'distclean' to also remove deps/

Update THANKS: use my real name

Fixes

Add missing clean/2

app_bin option was used by the install command which has been
removed in 51ed787.

- Add 'escriptize' command
- Remove variable 'dump_spec'

Rename rebar_core functions for improved readability.
Remove redundant comments and blank lines.

Fix rebar.config.sample

Restore support for so_name, port_envs and port_sources

Fix rebar_erlydtl_compiler:erlydtl_opts/1 and rebar:run/2

Fix erlydtl dependency check

Erlydtl compiler

zsh completion: fix typos

Add skip_deps=AppListSeparatedByCommas feature.

I agree it's a bit of a weird thing, but it's a reasonable and safe extension. When time comes to properly overhaul stuff, skip_deps should disappear entirely.