DOCS: Update to 1.12.

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackware-id.org>

GIT_BRANCHES.TXT

@@ -33,9 +33,16 @@ Currently, there are three branches in the MSB GIT repository:
   then this branch is considered obsoleted and no longer updated.
 
 - 14.1-mate-1.10:   The MSB stable branch for Slackware 14.1.
-  This is the currently supported branch and only receives bug fix updates.
+  This is the previously supported branch and only receives bug fix updates.
   The MSB 1.10 binary packages for Slackware 14.1 are built from this branch.
   You might want to use this branch if you enjoy stable releases.
+  Since MATE 1.12 has been released as the next stable release
+  then this branch is considered obsoleted and no longer updated.
+
+- 14.1-mate-1.12:   The MSB stable branch for Slackware 14.1.
+  This is the currently supported branch and only receives bug fix updates.
+  The MSB 1.12 binary packages for Slackware 14.1 are built from this branch.
+  You might want to use this branch if you enjoy stable releases.
 
 An easy way to find out which branch are you in right now (once you have
 cloned the repo or pulled the latest updates):
@@ -49,20 +56,22 @@ Example output of 'git branch':
   14.1-mate-1.6
   14.1-mate-1.8
   14.1-mate-1.10
+  14.1-mate-1.12
 * master
 
 This output indicates that you are now in the 'master' branch.
 
 To switch to another branch, use 'git checkout <branch_name>'.  Example:
 
-$ git checkout 14.1-mate-1.10
+$ git checkout 14.1-mate-1.12
 $ git branch
 
   14.0-mate-1.6
   14.1-mate-1.6
   14.1-mate-1.8
-* 14.1-mate-1.10
+  14.1-mate-1.10
+  14.1-mate-1.12
   master
 
-You have now switched from the 'master' branch to the '14.1-mate-1.10'
+You have now switched from the 'master' branch to the '14.1-mate-1.12'
 branch.

MATE-1.10-CHANGES.TXT

@@ -1,24 +0,0 @@
-New Packages in MATE 1.10:
-libgnomecanvas
-zenity (depends on libgnomecanvas)
-galculator
-docutils
-caja-dropbox
-libmatemixer
-mate-user-guide (available on /testing)
-mate-tweak (available on /testing)
-
-Renamed Packages in MATE 1.10:
-
-Packages removed in MATE 1.10:
-mate-calc (replaced by galculator)
-mate-dialogs (replaced by zenity)
-
-Packages Moved:
-- engrampa (moved to base)
-- mate-media (moved to base)
-- mate-power-manager (moved to base)
-- mate-system-monitor (moved to base)
-- mate-screensaver (moved to base)
-- mate-terminal (moved to base)
-- eom (moved to base)

MATE-1.12-CHANGES.TXT

@@ -0,0 +1,5 @@
+New Packages in MATE 1.12:
+
+Renamed Packages in MATE 1.12:
+
+Packages removed in MATE 1.12:

README.TXT

@@ -4,7 +4,7 @@ MATE SlackBuilds
 This project provides SlackBuild scripts to build and install the MATE
 desktop environment (http://www.mate-desktop.org) on Slackware Linux.
 Please check the main project website at http://mateslackbuilds.github.io
-for screenshots and more information.  There is also a link to MATE 1.10
+for screenshots and more information.  There is also a link to MATE 1.12
 binary packages for Slackware 14.1 and also older MATE packages for Slackware
 14.0 and 14.1.
 
@@ -15,8 +15,8 @@ After cloning the initial Git repo, you will be using 'master' branch which
 will build the development branch for MATE desktop.  Building from the
 development branch is not supported and may or may not work at any given
 moment.  Most users will want to build from the stable branch which is MATE
-version 1.10, released in June 2015.  Checkout that branch using 'git
+version 1.12, released in November 2015.  Checkout that branch using 'git
-checkout 14.1-mate-1.10' to build from the stable MSB branch.
+checkout 14.1-mate-1.12' to build from the stable MSB branch.
 
 The rest of this README.TXT is specific to building from the 'master'
 branch.
@@ -34,7 +34,7 @@ of using "sudo".
 and install all the base (required) packages. There are a total of 24 packages
 and they do not replace any stock Slackware packages. The SlackBuilds will use
 wget to download the sources.  Or, you can also manually download the
-sources from: http://pub.mate-desktop.org/releases/1.10 and the download
+sources from: http://pub.mate-desktop.org/releases/1.12 and the download
 locations for each dependency and put each source into the corresponding
 directory within 'base' and 'deps'.