* Lint: Disable a couple potentially problematic/unneeded hooks
* Lint: Refine regex for existing Content-Type and PEP references checks
* Lint: Refine regex for Python-Version check and fix a couple deviations
* Lint: Refine regex for Created check and fix a couple deviations
* Lint: Refine regex for Resolution check and fix a few deviations
* Lint: Add new check for Post-History header
* Lint: Add check for Discussions-To header link
* Lint: Add basic check for PEP title presense & excessive length
* Lint: Add check for PEP/BDFL-Delegate header
* Lint: Add check for Sponsor header
* Lint: Add check for legacy Author field format
* Lint: Add check for RST Author field
* Lint: Use more helpful, user-oriented descriptions for header checks
* PEP 245: Add historical note and archive links to wiki page/email lsit
* PEP 628: Add direct link to resolution in acceptance message
* Lint: Explictly allow all valid RFC 2822 line continuations in headers
* Lint: Tweak Post-History and Resolution checks to accept fragments
Per PEP 600:
```
When this PEP is accepted, the previous manylinux PEPs will receive a final update noting that they are no longer maintained and referring to this PEP.
```
* PEP 599: Remove vsyscall section
The vsyscall usage in glibc removed in the 2.14 release, so this is not
relevant for manylinux2014
* Clarification about PyPI support
Adam Turner
CAM Gerlach
Matthieu Darbois
Brett Cannon
Sumana Harihareswara
Dustin Ingram
Paul Moore