* move create_app.py from spyder repo to this repo
* create virtualenv requirements

* remove non-essential packages for now; restore when app works
* include wrapt fixes issue "ModuleNotFoundError: No module named 'wrapt'"
* include lazy_object_proxy fixes issue "ModuleNotFoundError: No module named 'lazy_object_proxy'"
* include spyder_kernels fixed previous kernel error
* include pyls fixed no linting warning
* Note: everything seems to be working except linting and alignment guides in editor (works with bootstrap)

* Note: pillow cannot currently be packaged with py2app; see ronaldoussoren/py2app#219. It's possible that compile/install from source may work, but that will have to be deferred.

* streamline build process

…: internal interpreter won't work in alias mode if using virtualenv

* minimize packages outside Resources/lib/pythonXX.zip
* parse extra argument '--no-dmg' and make for flexible control of setup execution
* add option for 'lite' build

…rces

* after pyls plugins loaded, resolved further issues by including appropriate packages
* clean-up PACKAGES

* fixed boolean typo

* Note: at present, only supports external interpreters with same python version as internal interpreter.

* -e flag required on pip install so that egg-info can be copied to bundle

* Force reinstall python-language-server and spyder-kernels
* Skip egg info if missing

* move subrepo installation to environment creation shell script
* move copy spyder repo to environment creation shell script
Note: in future make spyder a subrepo to spyder-mac-app

* spyder-subrepo.sh script only updates subrepo