Support spaces before brackets/braces

[tadatuta]

page {title:'ololo',blah:'kuku'}

[tadatuta]

@Yeti-or the issue turned out to be not so straight forward.

What should produce such situations:

b1 { block: 'b2' }

or

page{title: 't1'} { title: 't2' }

Maybe we should not support space here at all?