Rename directory.
Import header files to KRCloudSync.h
Remove unused headers import.
Remove DropboxSDK framework.
Add Dropbox framework(Sync API)
Remove Dropbox import/export.
Remove unused delegate.
Modify float to CGFloat.
Add block including.
iCloud 베이스 URL 설정.
Merge branch 'master' of https://github.com/MindPreview/KRCloudSync
Modify log and prototype for block.
Merge branch 'master' of https://github.com/MindPreview/KRCloudSync

Conflicts:
	Classes/KRDropboxService.m
Merged.
Merged
Remove unused codes.
Change key from NSMetadataUbiquitousItemIsDownloadedKey to NSMetadataUbiquitousItemDownloadingStatusKey.
Modify queryDidUpdateNotification.
Remove unused codes.
Always accept remote item when sync item not exists in local.
Add publishing URL.