#648: Start and End dae added
minor patches
iOS: remove unimplemented explore data button from main view controller
Merge branch 'ios-release-1.0.1' of github.com:google/paco into ios-init
Merge pull request #666 from google/issue636

Issue636
iOS: fix the join event payload caused by legacy code
Merge pull request #664 from dhanya/issue648

Issue648
#648 use inclusive end date string to be consistent with web and also android
iOS: remove location key from info plist, since we don’t need it for significant location monitoring
Merge pull request #669 from google/ios-release-1.0.1

iOS: remove location key from info plist, since we don’t need it for sig...
#619 merge conflicts
iOS: update version number to 1.0.2