Conda

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* removed build, convert, index, and skeleton commands, which are now
part of the conda-build project: https://github.com/conda/conda-build
* limited pip integration to `conda list`, that means
`conda install` no longer calls `pip install` !!!
* add ability to call sub-commands named 'conda-x'
* The -c flag to conda search is now shorthand for --channel, not
--canonical (this is to be consistent with other conda commands)
* allow changing location of .condarc file using the CONDARC environment
variable
* conda search now shows the channel that the package comes from
* conda search has a new --platform flag for searching for packages in other
platforms.
* remove condarc warnings: issue 526issuecomment-33195012

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* add ability create info/no_softlink
* add conda convert command to convert non-platform-dependent packages from
one platform to another (experimental)
* unify create, install, and update code. This adds many features to create
and update that were previously only available to install. A backwards
incompatible change is that conda create -f now means --force, not
--file.

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* automatically prepend http://conda.binstar.org/ (or the value of
channel_alias in the .condarc file) to channels whenever the
channel is not a URL or the word 'defaults or 'system'
* recipes made with the skeleton pypi command will use setuptools instead of
distribute
* re-work the setuptools dependency and entry_point logic so that
non console_script entry_points for packages with a dependency on
setuptools will get correct build script with conda skeleton pypi
* add -m, --mkdir option to conda install
* add ability to disable soft-linking

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* add check for chrpath (on Linux) before build is started, see issue 469
* conda build: fixed ELF headers not being recognized on Python 3
* fixed issues: 467, 476

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* fixed bug in conda build related to lchmod not being available on all
platforms

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* fix test section for automatic recipe creation from pypi
using --build-recipe
* minor Py3k fixes for conda build on Linux
* copy symlinks as symlinks, issue 437
* fix explicit install (e.g. from output of `conda list -e`) in root env
* add pyyaml to the list of packages which can not be removed from root
environment
* fixed minor issues: 365, 453