Close Stale PRs

[curran]

All of these PRs look like they are going nowhere.

Maybe we can close them and ask the authors to resubmit if they are still into the idea?

• Adds two new doc events: 'before op batch' and 'after op batch' Adds two new doc events: 'before op batch' and 'after op batch' #247 opened on Sep 13, 2018 by danburzo
• Sync presence and undo redo Sync presence and undo redo #229 opened on Jul 20, 2018 by gkubisa
• Implement undo/redo enhancement Implement undo/redo #216 opened on Jun 21, 2018 by gkubisa
• Do not compose create with op Do not compose create with op #213 opened on Jun 12, 2018 by gkubisa
• Sync ephemeral presence data enhancement Sync ephemeral presence data #207 opened on Apr 26, 2018 by gkubisa
• Fix hasWritePending in op's callback Fix hasWritePending in op's callback #205 opened on Apr 24, 2018 by gkubisa
• Emit error on failed resubscribe Emit error on failed resubscribe #174 opened on Oct 17, 2017 by gkubisa
• [Proposal] Op Event Changes [Proposal] Op Event Changes  #129 opened on Oct 8, 2016 by roark

[alecgibson]

NB: We were literally talking about #129 in today's meeting, so I do think it's still relevant (it would have solved #396 for example), although it'd probably need some work, and some thinking to make it non-breaking.