ui/: Move to `lazycat/'

* ui/: Move to `lazycat/'.
* lazycat/Makefile.am (SUBDIRS): Update.
* configure.ac: Update.
* Makefile.am (SUBDIRS): Update.
proxies/: Move to `lazycat/'

* proxies/: Move to `lazycat/'.
* lazycat/Makefile.am (SUBDIRS): Update.
* configure.ac: Update.
* Makefile.am (SUBDIRS): Update.
lazycat/proxies/: Rename to `lazycat/proxy/'

* lazycat/proxies/: Rename to `lazycat/proxy/'.
* lazycat/proxy/ssh-proxy.scm, lazycat/proxy/tcp-proxy.scm: Move
  to `(proxy ssh-proxy)'.
* lazycat/daemon/proxy-list.scm: Update.
* lazycat/Makefile.am (SUBDIRS): Update.
* configure.ac: Update.
Merge branch 'master' into wip-ipc-improvement

Conflicts:
	ChangeLog