3.0.18

Bug fixes:

• fix source hash not being verified #2367
• fix several references to arch that should be host_arch to support cross compiling (win-32 on win-64, for example) #2369, #2368
• replace recipe run requirements with contents of index.json's "depends" when testing packages #2370
• update R and perl versions in DEFAULT_VARIANTS #2373
• fix versioneer showing unknown version on windows due to --match argument #2375
• add subdir to moved work folder dirname, to avoid clobbering when cross compiling #2376

Contributors:

• @jjhelmus
• @mingwandroid
• @msarahan