remove the slideshow_height setting which was added for file and video support. The height is calculated by javascript

fix an issue in js if there are more than 1 slideshow. The error was in options.before and was related to the settings variable. The issue was visible only if one of the slideshow had a carousel pager

add entity variable to field_slidehow_theme so that it can be accessed in template file (fix #1433282)

add back the pager and controls position option, fix #1502772. Also splitted the template and created a pager and a controls templates