bump to version 2.54.4
addressed issue https://github.com/globaleaks/GlobaLeaks/issues/839
added globaleaks/db/update_10_11.py
fixed some validation actions on submission fields
migration script alterded, added comments to what is changed
corrected typ0
added possibility to configure ramdisk from initscript configuration file
fixed various unit tests.
addressed issue https://github.com/globaleaks/GlobaLeaks/issues/822
removed sha256sum from etag (https://github.com/globaleaks/GlobaLeaks/issues/822)
addressed issue https://github.com/globaleaks/GlobaLeaks/issues/822
added migration routines related to InternalFile sha removal
minor fix for migration script
minor fix related to sha removal
bump to version 2.54.5