Remove misleading encryption info from wizard (#4545).
Merge branch 'feature/4545_remove-misleading-encryption-information-from-wizard' into develop
Fold in changes.
Merge branch 'release-0.0.3'
add logo to install.rdf

also:

* Fix minimum version to include -rcs
* Add contributors list
* Spelling OCD Fixes.
add properties files to xpi files

This is a merge from the Makefile in the debian branch.
bitmask.xpi rule is the one expected/used by the debhelper.

I think it was not correctly included or merged in a past pullreq.
Merge remote-tracking branch 'remotes/kalikaneko/feature/add-logo' into develop
Small fixes in install.rdf template structure.
Merge remote-tracking branch 'remotes/kalikaneko/bug/include_properties' into develop
Fix error string on new account setup (#5193).
Fix develop and build info on readme.
Reorder makefile targets.
Only disable caching checkbox if caching is already disabled.