Release version 1.8.0-rc1

Added - Arrow Nav: Position (Inside or Outside)
Added - Arrow Nav: Custom Size
Tweak - Arrow Nav: Always visibility
Added - Bullet Nav: Position (Left, Center or Right)
Added - Bullet Nav: Custom Size
Tweak - Arrow Nav: Option to enable visibility only on hover
Tweak - Alpha color picker for choosing color
Added - Content Carousel/Slider
Added - Content Carousel: Add unlimited number of slide
Added - Content Carousel: Delete and sort(up, down, top, bottom) slide
Added - Content Carousel: Slide background with color, image and more
Added - Content Carousel: Slide content with wp_editor()