Add Carthage support

Cartfile

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+github "segmentio/analytics-ios"
+github "mixpanel/mixpanel-iphone"

Cartfile.resolved

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+github "mixpanel/mixpanel-iphone" "v3.6.3"
+github "segmentio/analytics-ios" "4.1.2"

Pod/Classes/SEGMixpanelIntegration.m

@@ -1,5 +1,5 @@
 #import "SEGMixpanelIntegration.h"
-#import "MixpanelGroup.h"
+#import <Mixpanel/MixpanelGroup.h>
 
 #if defined(__has_include) && __has_include(<Analytics/SEGAnalytics.h>)
 #import <Analytics/SEGAnalyticsUtils.h>

Segment-Mixpanel.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>

Segment-Mixpanel.xcodeproj/xcshareddata/xcschemes/Segment-Mixpanel.xcscheme

@@ -0,0 +1,80 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1020"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "C979B8212326E318003E9671"
+               BuildableName = "Segment_Mixpanel.framework"
+               BlueprintName = "Segment-Mixpanel"
+               ReferencedContainer = "container:Segment-Mixpanel.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+      </Testables>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "C979B8212326E318003E9671"
+            BuildableName = "Segment_Mixpanel.framework"
+            BlueprintName = "Segment-Mixpanel"
+            ReferencedContainer = "container:Segment-Mixpanel.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "C979B8212326E318003E9671"
+            BuildableName = "Segment_Mixpanel.framework"
+            BlueprintName = "Segment-Mixpanel"
+            ReferencedContainer = "container:Segment-Mixpanel.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

Segment-Mixpanel/Info.plist

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+<?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>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>FMWK</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>$(CURRENT_PROJECT_VERSION)</string>
+</dict>
+</plist>

Segment-Mixpanel/Segment_Mixpanel.h

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+#import <UIKit/UIKit.h>
+
+//! Project version number for Segment_Mixpanel.
+FOUNDATION_EXPORT double Segment_MixpanelVersionNumber;
+
+//! Project version string for Segment_Mixpanel.
+FOUNDATION_EXPORT const unsigned char Segment_MixpanelVersionString[];
+
+// In this header, you should import all the public headers of your framework using statements like #import <Segment_Mixpanel/PublicHeader.h>
+
+#import <Segment_Mixpanel/SEGMixpanelIntegration.h>
+#import <Segment_Mixpanel/SEGMixpanelIntegrationFactory.h>