4.5.1

• [CVE-2021-27938] Prevent echoing request variable (Steve Boyd) - 4c8aa39
• PR fixes (Mojmir Fendek) - 7172da7
• MISC: Improved documentation on special job variables. (Mojmir Fendek) - 7c8a6a5
• Queued jobs documentation improvements (Mojmir Fendek) - 17f4077
• Fix QueuedJobsAdmin parsing job parameters (Serge Latyntcev) - 81ad84f
• Document required fields for defaultJobs (Fred Condo) - 250179c
• Fix docblock for phpcs (Steve Boyd) - d4d6cdd
• Use tagged versions for 1.x recipe-cms, use trusty (Steve Boyd) - a70e5f5
• Remove phpcs runs from 4.0 branch, code not compliant (Robbie Averill) - e6e1827
• Add phpcs ruleset from 4.4 branch (Robbie Averill) - bd6a48a
• Add codesniffer to dev dependencies (Robbie Averill) - 4e1bb1f
• Update Travis configuration (Robbie Averill) - e01a2b6