Moved /LASTLOG handling to lastlog.c. Added options -file <filename>

for writing lastlog to file, -window <ref#|name> for specifying which
window's lastlog to print (output is always to active window) and
-clear option to remove all lastlog lines from window.


git-svn-id: http://svn.irssi.org/repos/irssi/trunk@1255 dbcabf3a-b0e7-0310-adc4-f8d773084564

src/fe-text/Makefile.am

@@ -26,6 +26,7 @@ irssi_SOURCES = \
         gui-readline.c \
         gui-textwidget.c \
         gui-windows.c \
+	lastlog.c \
         mainwindows.c \
         mainwindow-activity.c \
         mainwindows-save.c \