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* allow new package specification, i.e. ==, >=, >, <=, <, != separated
by ',' for example: >=2.3,<3.0
* add ability to disable self update of conda, by setting
"self_update: False" in .condarc
* Try installing packages using the old way of just installing the maximum
versions of things first. This provides a major speedup of solving the
package specifications in the cases where this scheme works.
* Don't include python=3.3 in the specs automatically for the Python 3
version of conda. This allows you to do "conda create -n env package" for
a package that only has a Python 2 version without specifying
"python=2". This change has no effect in Python 2.
* Automatically put symlinks to conda, activate, and deactivate in each
environment on Unix.
* On Unix, activate and deactivate now remove the root environment from the
PATH. This should prevent "bleed through" issues with commands not
installed in the activated environment but that are installed in the root
environment. If you have "setup.py develop" installed conda on Unix, you
should run this command again, as the activate and deactivate scripts have
changed.
* Begin work to support Python 3.4.
* Fix a bug in version comparison
* Fix usage of sys.stdout and sys.stderr in environments like pythonw on
Windows where they are nonstandard file descriptors.