Merge branch 'master' into 1.7.4_March_17th
bump version 1.7.4
bump 1.7.4
uiConfJS: Fixed a bug where html5 library does not package ps files
Merge branch '1.7.4_March_17th' of github.com:kaltura/mwEmbed into 1.7.4_March_17th
fixed playlist layout rendering
kWidget: fixed jquery depencency in uiConf resolve ( broken flashembed )
EmbedTypes: Added video/mp4 to kplayer types

* Avoid download link for firefox when no webm flavor is present.
Merge pull request #364 from kaltura/1.7.4_March_17th

1.7.4 march 17th
fixed playlist scrolling
Merge branch 'master' of local repository into feature-hub-kbrand