Spelling error corrected usefull -> useful

Author Roger <rogersachan@users.noreply.github.com>
Author date 2016-07-26 08:43:07
Author local date 2016-07-26 04:43:07 -0400
Committer GitHub <noreply@github.com>
Committer date 2016-07-26 08:43:07
Committer local date 2016-07-26 04:43:07 -0400
Commit 35a316a90ed412d939c7851e1351e6dbdcb662d0
Tree 84556f3407b7415cdd4dd51fa3bb3f48082bbb6f
Parent e4ab949a08176231b8a5a5834677c7138db462da
Spelling error corrected usefull -> useful
Affected files:
PokemonGo/RocketAPI/Window/MainForm.cs
You may download the files in Public Git.