Added /sub command test
Test usage shown for /sub
Removed wins_refresh_console when not required for /sub command output

Implicitly called by cons_show
autotools: refactored configure.ac

This patch implements request #269.
Merge remote-tracking branch 'louiecaulfield/master'
configure.ac: added check for wget_wch support
configure.ac: glib must be at least 2.26

Profanity uses GDateTime structure that appeared in glib-2.26.
Added full stop to /about help summary

Conflicts:

	src/command/command.c
Added full stop to /chlog help summary

Conflicts:

	src/command/command.c
Added full stop to /help service summary
Added full stop to /grlog help summary

Conflicts:

	src/command/command.c
Added full stop to /help help summary

Conflicts:

	src/command/command.c
configure.ac: removed autoconf version check

autoconf-2.63 works well
Tidied navigation help

Conflicts:

	src/ui/console.c
configure.ac: added check for expat without pkg-config

and some refactoring
Merge remote-tracking branch 'pasis/iss269'

Conflicts:
	configure.ac
Updated .gitignore
fixed segfault when home directory doesn't exist
Merge remote-tracking branch 'pasis/iss270'
Added tests for contact type