Update ChangeLog, NEWS and README for release.

Increment version in configure.ac.

README

@@ -1,10 +1,22 @@
 
-Redshift 1.1
-============
+Redshift
+========
 
-Adjust color temperature of your screen according to your
-surroundings. This may help your eyes hurt less if you are working in
-front of the screen at night.
+Redshift adjusts the color temperature of your screen according to
+your surroundings. This may help your eyes hurt less if you are
+working in front of the screen at night.
+
+Download
+--------
+
+Latest release is redshift 1.2 published on 2010-02-12. There are also
+packages available for some distributions:
+
+ * Ubuntu: Packages for Ubuntu Karmic.
+ * Gentoo: Redshift is in the Sunrise overlay.
+
+What is it?
+-----------
 
 The program uses an X server extension to adjust the color
 temperature. This is done by setting appropriate gamma ramps. If you
@@ -23,18 +35,26 @@ room. This is typically a low temperature at around 3000K--4000K
 the light from outside, typically around 5500K--6500K (default is
 5500K). The light has a higher temperature on an overcast day.
 
-The program will continously update the color temperature at regular
+How does it work?
+-----------------
+
+Redshift will continously update the color temperature at regular
 intervals. One shot mode can be selected if you only want to do one
-adjustment.
+adjustment. The color adjustments done by Redshift can be temporarily
+toggled on and off by sending it the USR1 signal:
+
+ $ killall -USR1 redshift
 
 The command line options are explained in the following paragraphs. The
 only required parameter is your current location, all other options
 have reasonable defaults.
 
+  -h		Display help message.
+  -v		Verbose output.
+
   -g R:G:B	Additional gamma correction to apply. Can also be
      		specified as -g GAMMA to set all channels to the same
      		gamma value.
-  -h		Display help message.
   -l LAT:LON	Your current location in latitudes and longitudes.
   -m METHOD	Method to use to set color temperature (randr or
      		vidmode). Default is randr. In some cases one of the
@@ -47,15 +67,16 @@ have reasonable defaults.
      		temperature when the program is started and stopped.
   -s SCREEN	X screen to apply adjustments to.
   -t DAY:NIGHT	Color temperature to set at daytime/night.
-  -v		Verbose output.
 
 Example (location is Copenhagen, Denmark):
 
  $ redshift -l 55.7:12.6 -t 5700:3600 -g 0.8 -m vidmode -v
 
-To create a status icon for Redshift in the system tray, start the
-program gtk-redshift instead of redshift, with the same arguments as
-you would pass to redshift. This will create an icon for Redshift in
-the system tray. The icon will allow you to toggle Redshift on and
-off. Thanks goes to the Tango Desktop Project for the
+Status icon
+-----------
+
+Start the program gtk-redshift instead of redshift, with the same
+arguments as you would pass to redshift. This will create an icon for
+Redshift in the system tray. The icon will allow you to toggle
+Redshift on and off. Thanks goes to the Tango Desktop Project for the
 icon. gtk-redshift requires at least Python 2.4 and PyGTK 2.12.