packaging: Use patched entry point and link it to /usr/bin

By renaming the entry point, which had the same name as the module,
both can now be installed in the same directory. The entry point can
then be created in /usr/bin as a link with the original name
'revpicommander'.

Signed-off-by: Sven Sager <akira@narux.de>

debian/install

@@ -1,3 +1,2 @@
-data/revpicommander                 /usr/bin
 data/revpicommander.desktop         /usr/share/applications
 data/revpicommander.png             /usr/share/icons/hicolor/128x128/apps

debian/links

@@ -0,0 +1 @@
+/usr/share/revpicommander/revpicommander_entry_point /usr/bin/revpicommander

debian/rules

@@ -3,7 +3,7 @@
 export PYBUILD_NAME=revpicommander
 
 # Install this module as an application an not into the python standard library path
-export PYBUILD_INSTALL_ARGS=--install-lib=/usr/share/revpicommander/ --install-scripts=/usr/share/revpicommander/bin/
+export PYBUILD_INSTALL_ARGS=--install-lib=/usr/share/revpicommander/ --install-scripts=/usr/share/revpicommander/
 
 %:
 	dh $@ --with python3 --buildsystem=pybuild