Add -force-overwrite flag to publish update, switch, snapshot and repo commands. #90

Includes new and updated system tests.

system/t06_publish/PublishRepo25Test/pyspi_0.6.1-1.5.dsc

@@ -0,0 +1,12 @@
+Format: 1.0
+Source: pyspi
+Binary: python-at-spi
+Architecture: any
+Version: 0.6.1-1.5
+Maintainer: Jose Carlos Garcia Sogo <jsogo@debian.org>
+Homepage: http://people.redhat.com/zcerza/dogtail
+Standards-Version: 3.7.3
+Vcs-Svn: svn://svn.tribulaciones.org/srv/svn/pyspi/trunk
+Build-Depends: debhelper (>= 5), cdbs, libatspi-dev, python-pyrex, python-support (>= 0.4), python-all-dev, libx11-dev
+Files:
+ d41d8cd98f00b204e9800998ecf8427e 0 pyspi_0.6.1.orig.tar.gz