add one more problem in function exercise
add answer
Merge pull request #50 from marshallshen/master

add one more problem in function exercise
Improve grammatical flow

refs #51
Fix spelling.
Merge pull request #54 from dkinzer/Fix-spelling

Fix spelling.
rearranging map keys to prove sort function
Merge pull request #57 from bobwilliams/master

rearranging map keys to prove sort function
Update 05_maps.clj

"Often you will need to get the keys, but the order is undependable"
The keys value pairs are already ordered by key. Why not make the original map un-ordered to force the user to think about sorting them?

"You can get the values in a similar way"
Two of the three values are already provided in the answer, the answer to this challenge can be arrived at by providing the missing one through process of elimination without thinking about sorting.
update answer key
Merge remote-tracking branch 'upstream/master'

Conflicts:
	src/koans/05_maps.clj