root-conda-recipes: Minor fixes

The most important fix is with respect to Conda's environment variable CONDA_ENV_PATH, which may not be set by conda in some cases. #9

root-conda-recipes: Initial release

Initial release of the Conda recipes for building CERN ROOT binaries and its dependencies. For the needs of the XENON Dark Matter project, the goal is to provide a "pythonic" interface to the ROOT I/O format, primarily for loading and saving Pandas dataframes in the ROOT format. For this purpose, there are also recipes for building conda binaries of root-numpy and rootpy, the community-driven initiative to provide a more pythonic interface with ROOT on top of the existing PyROOT bindings.