Abbreviate issue investigation.
Add new issue from Dave (move_iterator)
Further wording improvements by Ganesh
Get rid of redundant returns elements
Added more clarification to the discussion
New issue from Jeffrey (forward iterator)
New issue from Jonathan (allocator compile-time equal)
Added cross-link to 2108
Revised wording for 2070, some editorial fixes for 2108
Improve wording for issue 2070
Added Jonathans improved wording
Further wording improvements from Ganesh
Fix some typos
New issue for incorrect Requires elements for hash specializations
Fixing typos in P/R
Adding Marc's alternative P/R
Simplified alternative 2
Extend P/R
Improve wording
Add Link issues, add link to resolving paper