fix test for nested list.search to handle blank names
Merge branch '0.3' of https://github.com/renkun-ken/rlist
use structure with names to remove extra lines of code
Merge pull request #44 from timelyportfolio/0.3

add/fix test for list.search on nested list
refine List message
Merge branch '0.3' of https://github.com/renkun-ken/rlist into 0.3