remove errant .DS_Store file
Removes .DS_Store and git ignores it
Merge pull request #271 from jonuy/issue-270

Removes .DS_Store and git ignores it
change donation amount back to $10
Merge pull request #273 from tongxiang/ten

change DonorsChoose donation amount back to $10
add timestamps to competitive story gamedocs, userdocs, donation_info docs
remove function call parens
Merge pull request #276 from tongxiang/timestamps

add timestamps to to help facilitate debugging
fix merge conflicts