Bump IGListKit to v5.1.0

Summary: Updates the CHANGELOG with all of the latest enhancements and fixes, and bumps the version number of IGListKit to 5.1.0

Reviewed By: benhgreen

Differential Revision: D85926201

fbshipit-source-id: c3c37bbfb859da3ef753b3a8074cf28c8b0febfa

Bump library version to 5.0.0

Summary: Updates the version of IGListKit in its Info.plist file to 5.0.0

Reviewed By: lorixx

Differential Revision: D57265035

fbshipit-source-id: 5adb37d4230a8bc6e07f2f2016904258acfb08b5

Add link to Changelog (#1397)

Summary:
Pull Request resolved: #1397

Added link to PR

Reviewed By: lorixx

Differential Revision: D18638528

fbshipit-source-id: 847deee505e4154a6940825a07ca24d664137c76

Update examples for 3.4

Summary:
See title
Closes #1166

Differential Revision: D7860384

Pulled By: rnystrom

fbshipit-source-id: 3536f8434cb28591be23cb9456b5613f7a1a1a07

Generate docs for 3.3.0

Summary:
Ran `build_docs.sh` script for 3.3.0 release
Closes #1154

Differential Revision: D7728775

Pulled By: rnystrom

fbshipit-source-id: 40a77e95387050a8d7c6bc4a629fdb06b7b0a7fa

Readme reflects min macOS requirement of 10.11

Summary: Closes #1089

Differential Revision: D6918813

Pulled By: rnystrom

fbshipit-source-id: 13586a4ce3515538f6ef8f8ccebd58900d1fc306

Fix binding SC deselection crash and publish 3.1.1

Summary:
- Fixed #918 by checking `respondsToSelector:` (boo optionals)
- Cut 3.1.1 for immediate publish

- [x] All tests pass. Demo project builds and runs.
- [x] I added tests, an experiment, or detailed why my change isn't tested.
- [x] I added an entry to the `CHANGELOG.md` for any breaking changes, enhancements, or bug fixes.
Closes #921

Differential Revision: D5748009

Pulled By: rnystrom

fbshipit-source-id: b387b3988abc785f312bc47ac003851283972d7a

Pod install 3.1.0

Summary:
Updating example pods via script
Closes #911

Differential Revision: D5695840

Pulled By: rnystrom

fbshipit-source-id: 7aaaf9f07e0aa0cccbebbcbd12d9e5a617755cf1

final docs update for 3.0

Summary: Closes #738

Differential Revision: D5052802

Pulled By: jessesquires

fbshipit-source-id: b1ace763da9edbb7bc65ecb9af34aa791e617aa7

Release 2.1.0 prep

Summary:
Prepping for `2.1.0`

- [x] Bump version numbers
- [x] Rebase this branch after remaining PRs are closed
- [ ] Run `pod install` (**must be done internally**)
- [x] Re-gen docs
Closes #380

Reviewed By: rnystrom

Differential Revision: D4381222

Pulled By: jessesquires

fbshipit-source-id: 04646168d3c84d0dd2c08f0a357836b9326f8963