Enhancements: ------------- * Warn user about path conflicts during environment building for test phase #2843 * Add conda 4.6 compatibility #2844 * **remove conda 4.2 and earlier compatibility** #2845 * add info to merge/copy source subdir error #2858 * Add setup for Air Speed Velocity benchmarking #2859 Bug fixes: ---------- * fix python handling when python is a tuple (inner python looping) #2854 * fix python not looping in inner packages when top-level doesn't use it. Fix zip_keys handling. #2856 Contributors: ------------- * @kalefranz * @msarahan