add context manager to handle downloads to a tempfile
apply new context manager to bundle command
fix --quiet option and some simplifications
extend ability to use url instead of local file to install --file and create --file options
allow download() to take full destination path
avoid duplicate download funciton, also fixes #230
fix download in skeleton command
add useful output when building from a source tarball
add comment - cleanup
update changelog
simplified ensuring setup_handlers() is only called once
add writable information to info command
when cloning environments conda needs to be discarded
update changelog - formatting
remove duplicate code
improve warning message
conda commands in doc scaper
update docs
cleanup
simplified how ARCH is interpreted