Release 10.5.2

• Prepare for release (e1c10ec)
• Merge pull request #1086 from jamiebuilds/git-head-base (dbb7a62)
• add danger.git.head and danger.git.base (423e6f8)
• Merge pull request #1082 from revolter/patch-1 (b370e04)
• Fix unfinished sentence in docs (49215d6)
• Fix changelog (c74aa2f)