Merge pull request #223 from thriuin/master

Make link to JSON work in registry
use normal input_block macro for wrapping multi-checkbox fields
remove popular from sort-by drop down
dataset view: reduce the number of indentation levels and ways of drawing attention to text (bold, italics)
dataset view: hide geographic region when not provided
dataset view: remove size column
make resource preview button look like download button
Merge pull request #224 from wardi/master

Dataset view template changes