Conda-package-handling

Enhancements

* moved conda_package_handling into src (src layout)

Contributors

* msarahan

Bug fixes

* improve tests of symlink and other file contents

Contributors

* msarahan

Bug fixes

* fix creation dropping symlinks and things that are not otherwise "files"

Contributors

* msarahan

Bug fixes

* fix path join bug, where an absolute path for out_fn was causing file writing problems

Contributors

* msarahan

Bug fixes

* simplify .conda package info, to work with conda/conda8639 and conda/conda-build3500
* add missing six dep
* fix reference in cli.py to incorrect API function (how was this working?)
* Wrap calls to shutil.move in try, because of windows permission errors observed on Appveyor

Contributors

* msarahan
* nehaljwani

Enhancements

* new api-only function, ``get_pkg_details`` that returns package size and checksum info in dictionary form
* add version info output to the CLI

Contributors

* msarahan