mustache parameters and expressions in html should be written in livescript

[ceremcem]

for example, following partial expression should be valid:

{{>my-partial {pin_name: 'abc', list: [['x', 'y', 'z'], ['a', 'b', 'c']]} }}

{{>my-partial 
    pin_name: \abc
    list:
        * \x, \y, \z
        * \a, \b, \c 
}}