irc: add option irc.look.nick_color_hash: hash algorithm to find nick color (patch #8062)
doc: update auto-generated files with irc options
irc: add support of special variables $nick/$channel/$server in commands /allchan and /allserv
core: fix french translation of arguments in /help relay
core: rename configure.in to configure.ac
doc: update auto-generated files with irc commands
doc: update auto-generated file with relay commands
aspell: add support of enchant library (patch #6858)

Enchant is enabled only if the new option for cmake (or configure) is enabled:
- for cmake: cmake -DENABLE_ENCHANT=ON
- for configure: ./configure --enable-enchant
core: add "proxy" infolist and hdata
irc: display a warning when the proxy set in a server does not exist
doc: update german translations and FAQ
doc: add cmake options in user's guide
core: add options for Curl >= 7.25
core: add option weechat.network.proxy_curl (task #12651)
core: add partial turkish translations (tr.po)
relay: add command "ping" in weechat protocol (task #12689)
core: fix minor errors in translations

Errors were reported by POFileChecker (from package gettext-lint).
core: remove extra space after empty prefix (when prefix for action, error, join, network or quit is set to empty string) (bug #39218)
Merge branch 'master' of git://git.sv.gnu.org/weechat

Conflicts:
	po/ja.po
translation: update