Big Changed

• #330 Changes for swift 4.2, Xcode 10, and iOS 12 by jlcanale

Updated

• #314 Add possibility to provide custom request parameters by Fiser33
• #315 Fix: Unable to set delete and close button images without setting size. by kiztonwose
• #318 fix unreleased views in uiwindow for non-dismiss animation case by fans3210
• #321 Set the backround view's background color from settings by pantelisss
• #331 Add ability to lower caption and give caption a background gradient by corban123
• #334 Prevent app crashed on zooming when xScale or yScale is NaN, Inf by GE-N
• #335 use the size of the window instead of UIScreen to support SplitScreen by PatrickDotStar