Enhancements:
-------------

* set BUILD environment variable (triplet used by cross-compiling)  #2285
* respect condarc cache_dir setting for changing the source cache dir location #2278
* run selectors before returning meta.yaml extractions  #2284

Bug fixes:
----------

* fix CRAN skeleton field truncation with ; characters  #2274
* Warn about overlapping files in subpackages within a recipe  #2275
* fix --override-channels not taking effect  #2277
* fix double-activation on Windows for cross compiling  #2280
* fix variant entry duplication with zipped keys  #2280
* fix folder hoisting when folder name in archive matches package name  #2281
* fix test env showing old cached packages when test env has actually been removed  #2282
* fix source code not being present for render when source necessary for render and more than one variant  #2283
* fix binary_relocation not allowing lists of files  #2288
* fix incorrect python (or none at all) being used for pyc compilation with python only in host reqs  #2290