gui: Added graphical focus indicator to SECOM views
gui: label text shadow tweak
gui: small focus indicator bug fix
Merge branch 'master' of delmic-server.local:odemis
dataio: update pylibtiff to our own fork

this fixes both read and write problems for RGB images
dataio tiff: fix rational reading

reading rationals from the libtiff C wrapper is very simple as it directly returns a float.
No need to convert them.
Merge branch 'master' of vpn.delmic.com:odemis