use cocoapods cdn (#1386)

Summary:
## Changes in this pull request

This updates the Podfile to use the specs CDN instead of the git checkout, which is more performant (and the default with CocoaPods 1.8 and higher).

### Checklist

- [x] All tests pass. Demo project builds and runs.
- [x] I added an entry to the `CHANGELOG.md` for any breaking changes, enhancements, or bug fixes.
- [x] I have reviewed the [contributing guide](https://github.com/Instagram/IGListKit/blob/master/.github/CONTRIBUTING.md)
Pull Request resolved: #1386

Reviewed By: lorixx

Differential Revision: D18572204

Pulled By: iperry90

fbshipit-source-id: d3b721aaff92b18efeef31282cb9204055baec21

CHANGELOG.md

@@ -32,6 +32,8 @@ The changelog for `IGListKit`. Also see the [releases](https://github.com/instag
 
 - Created `IGListAdapterPerformanceDelegate` for IGListAdapter to be able to measure how long some operations take across all section controllers. For example, how long it takes to dequeue a cell. [Maxime Ollivier](https://github.com/maxoll) [(4662454)](https://github.com/Instagram/IGListKit/commit/4662454c4aedbc5d3bed0cb386f2ef93de40ba51)
 
+- Update CocoaPods integration to use the CocoaPods specs CDN [Koen Punt](https://github.com/koenpunt) (#1386)
+
 ### Fixes
 
 - Fixed bug with layouts inconsistency in `updateAnimated:completion` of IGListBindingSectionController. [Qinghua Hong](https://github.com/xohozu) [(#1285)](https://github.com/Instagram/IGListKit/pull/1285)

Examples/Examples-iOS/IGListKitExamples.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+ <key>IDEDidComputeMac32BitWarning</key>
+ <true/>
+</dict>
+</plist>

Gemfile.lock

@@ -45,7 +45,7 @@ GEM
  fuzzy_match (~> 2.0.4)
  nap (~> 1.0)
  cocoapods-deintegrate (1.0.4)
- cocoapods-downloader (1.2.2)
+ cocoapods-downloader (1.3.0)
  cocoapods-plugins (1.0.0)
  nap
  cocoapods-search (1.0.0)

IGListKit.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+ <key>IDEDidComputeMac32BitWarning</key>
+ <true/>
+</dict>
+</plist>

Podfile

@@ -1,4 +1,4 @@
-source 'https://github.com/CocoaPods/Specs.git'
+source 'https://cdn.cocoapods.org'
 use_frameworks!
 inhibit_all_warnings!
 

Podfile.lock

@@ -5,12 +5,12 @@ DEPENDENCIES:
  - OCMock (~> 3.0)
 
 SPEC REPOS:
- https://github.com/cocoapods/specs.git:
+ trunk:
  - OCMock
 
 SPEC CHECKSUMS:
  OCMock: 35ae71d6a8fcc1b59434d561d1520b9dd4f15765
 
-PODFILE CHECKSUM: aaf7bc356dd9757bdf68f3ff1a9970d95f46a387
+PODFILE CHECKSUM: 86d6388f691ba137cc4dc7025eafea3a728aea14
 
-COCOAPODS: 1.6.1
+COCOAPODS: 1.8.4