chore: add .c9 to gitignore

mhevery · mhevery · commit 5af57922dbf5 · 2014-09-19T21:55:04.000Z
diff --git a/.gitignore b/.gitignore
@@ -16,3 +16,4 @@ packages
 
 # Include when developing application packages.
 pubspec.lock
+.c9

Original file line number	Diff line number	Diff line change
`@@ -16,3 +16,4 @@ packages`
`16`	`16`
`17`	`17`	`# Include when developing application packages.`
`18`	`18`	`pubspec.lock`
	`19`	`+.c9`