gui: refactored conversion method so it uses the name 'physical' instead of 'real'.
Merge branch 'master' of delmic-server.local:odemis
doc: initial developer documentation

based on code documentation.
doc: add image
doc: fix image font
doc: ensure it's possible to generate a PDF too

SVG images must be automatically converted to PDF

figure command doesn't work with multiple formats, only image supports .*
gui: first version of point select overlay. Need cleanup and testcase update. This commit is for backup purposes only
Merge branch 'master' of delmic-server.local:odemis
doc: don't display search in PDFs
script: fix to new dataio API
Merge branch 'master' of vpn.delmic.com:odemis