Release: version of upcoming release -- with Git-flow

Starting with ''preview release'' `v0.pre.04`, branch and version tags
will be handled in accordance to the **Git-flow** naming scheme.
Notably this implies that from now on the version in-tree will indicate
the ''next expected release,'' adorned by a suffix to mark the preview.

To accommodate this transition to Git-flow
- the new branch `integration` will be introduced
- the version number will once (and the last time for this release)
  be adjusted ''before'' forking the release branch
- branch `master` will transition to reflect the latest released state
- several existing branches will be discontinued, notably
  `gui`, `steam`, `vault`, `release`, `play`

README

@@ -1,6 +1,6 @@
 Lumiera -- the video NLE for Linux
 ====================================
-Version: 0.pre.03
+Version: 0.pre.04~rc.1
 :Date: 11/2015
 
 *************************************************************

admin/scons/Setup.py

@@ -22,7 +22,7 @@ import Options
 
 #-------------------------------------------------------Configuration
 TARGDIR      = 'target'
-VERSION      = '0.pre.03'
+VERSION      = '0.pre.04~rc.1'
 TOOLDIR      = './admin/scons'    # SCons plugins
 OPTCACHE     = 'optcache'
 CUSTOPTFILE  = 'custom-options'

data/config/setup.ini

@@ -12,7 +12,7 @@ gui          = gtk_gui.lum
 modulepath   = $ORIGIN/modules
 configpath   = $ORIGIN/../../share/lumiera/config:$ORIGIN/config:~/.lumiera   # currently unused (2/2011)
 title        = Lumiera
-version      = 0.pre.03
+version      = 0.pre.04~rc.1
 website      = http://www.lumiera.org
 authors      = Joel Holdsworth|Christian Thäter|Hermann Voßeler|Stefan Kangas|Michael Fisher|Michael Ploujnikov|and others...
 copyright    = 2007 - 2025

doc/devel/Doxyfile

@@ -5,7 +5,7 @@
 #---------------------------------------------------------------------------
 DOXYFILE_ENCODING      = UTF-8
 PROJECT_NAME           = Lumiera
-PROJECT_NUMBER         = 0.pre.03
+PROJECT_NUMBER         = 0.pre.04~rc.1
 PROJECT_BRIEF          = "»edit your freedom«"
 PROJECT_LOGO           = draw/rendered/LumiLogo-small.png
 OUTPUT_DIRECTORY       =

doc/devel/Doxyfile.browse

@@ -14,7 +14,7 @@
 #---------------------------------------------------------------------------
 DOXYFILE_ENCODING      = UTF-8
 PROJECT_NAME           = Lumiera
-PROJECT_NUMBER         = 0.pre.03
+PROJECT_NUMBER         = 0.pre.04~rc.1
 PROJECT_LOGO           = draw/rendered/LumiLogo-small.png
 OUTPUT_DIRECTORY       = 
 CREATE_SUBDIRS         = NO