+hability of multi line tags and more keybindings

Added more keybindings

"ctrl+m" : { "pre":"<<", "post":">>"},
"ctrl+alt+t" : { "pre":"{{", "post":"}}"},
"ctrl+alt+l" : { "pre":"[[", "post":"]]"},
"alt+w" : { "pre":"<$", "post":"/>"},
"alt+z" : { "pre":"{{!!", "post":"}}"}