Issue #142: Updating CocoaPods
Merge remote-tracking branch 'origin/develop'

Conflicts:
	Simperium.podspec
Sets version to v0.6.4
Updates Simperium.podspec
SPMemberJSON: Nukes comments
SPPersistentMutableDictionary: updates variable names
SPSchema: Nukes static helper
Fixes comment typo
SPWebSocketChannel: Adds autoreleasepool comments
Issue #214: Nukes old authentication methods
Merge pull request #245 from Simperium/v0.6.4

Merges Simperium v0.6.4 Branch
Merge branch 'master' into develop

Conflicts:
	Simperium.podspec
	Simperium/SPEnvironment.m
	Simperium/SPWebSocketChannel.m
	Simperium/Simperium.m