Update mime.php to current reccomendations
Update mime.php to current reccomendations

Update mime.php to add webm and implement current mime recommendations for the ogg, oga, ogv & ogx containers:

http://www.ietf.org/rfc/rfc5334.txt
Former-commit-id: 375690b9d0a26a64a8e2180ad9744e8061787937
triplei/concrete5-8,rikzuiderlicht/concrete5,hissy/concrete5,a3020/concrete5,hissy/concrete5,jaromirdalecky/concrete5,acliss19xx/concrete5,haeflimi/concrete5,mainio/concrete5,deek87/concrete5,biplobice/concrete5,biplobice/concrete5,olsgreen/concrete5,MrKarlDilkington/concrete5,mlocati/concrete5,haeflimi/concrete5,acliss19xx/concrete5,hissy/concrete5,acliss19xx/concrete5,KorvinSzanto/concrete5,mlocati/concrete5,deek87/concrete5,mlocati/concrete5,a3020/concrete5,triplei/concrete5-8,mlocati/concrete5,olsgreen/concrete5,mainio/concrete5,rikzuiderlicht/concrete5,MrKarlDilkington/concrete5,rikzuiderlicht/concrete5,haeflimi/concrete5,biplobice/concrete5,concrete5/concrete5,mainio/concrete5,olsgreen/concrete5,jaromirdalecky/concrete5,deek87/concrete5,concrete5/concrete5,triplei/concrete5-8,jaromirdalecky/concrete5,biplobice/concrete5,MrKarlDilkington/concrete5,jaromirdalecky/concrete5,concrete5/concrete5,deek87/concrete5,concrete5/concrete5,haeflimi/concrete5,hissy/concrete5,KorvinSzanto/concrete5,KorvinSzanto/concrete5