mutt

Manual: better document what address groups are (for)

Implement ungroup command. Closes #3304.

Move remove_from_rx_list() to muttlib.c, name it mutt_remove_from_rx_list()

Use CRYPT_BACKEND_GPGME instead of non-existent HAVE_GPGME

Properly restore addresses from hcache using rfc822_new_address(). Closes #3302.

Don't leak mhs flags in mh_buffy(). Closes #3303.

add batch mode send-hooks note to UPDATING

Make send-hooks work for batch mode. Closes #3219. Handle SENDBATCH inline with the normal sending code, instead of handling it separately. This allows send-hooks to run, along with removing a number of unnecessarily lines of code.

Recognize charset extensions, see #3150. With utf-8//TRANSLIT, we internally didn't recognize it as utf-8. This leads to badly broken behaviour if --without-wc-funcs is used for some reason. In that case, if we have utf-8 as charset, we implement ... [More] our own wide char functions; for all other charsets, we use the system single-byte locale functions. And using these with utf-8 is broken. [Less]

Render blanks to spaces in index, fixes [298194c414f0] wcwidth() returns -1 so 'foobar' was rendered to 'foobar', and now to 'foo bar'. Closes #3270 again.