DCP-o-matic 2.18.6 released

[carl]

Download it now from here.

• Fix first frame of content being shown even when it should have been trimmed away (#2952).
• Fix adding of trusted devices to screens.
• Fix sorting cinemas and DKDM recipients (again) (#2950).
• Fix broken --dump-decryption-certificate option to dcpomatic2_kdm_cli (#2956).
• Speed up cinema/screen loading considerably.
• Update the interface immediately on a change to the configured cinema/screen database (#2951).
• Fix prompted filetypes from XML to sqlite3 when setting/exporting cinema/screen databases.
• Fix spurious ‘there were no errors’ reports in the verifier.
• Find missing files better in projects coming from other platforms (#2935).
• Allow find missing of renamed files (#2935).
• Better tolerate badly-formatted MainSoundConfiguration (#2942).
• Support some newer content types (e.g. clip) properly.
• Add option to force short screen layout (#2946).
• Allow pasting of timecodes into the marker dialog.