Remove Scala braces to adhere to the style guide

Scala if statements can have braces, but convention is not to use them
except in specific situations; so let's not use them by default.

Let's also add a space before the opening `(`, as this is also
convention.

Lastly, remove the useless placeholder text, as recommende in the
project README. Everyone knows how an if statement works. :)

http://www.codecommit.com/scala-style-guide.pdf

snippets/scala.snippets

@@ -6,32 +6,27 @@
 # Scala lang
 #if
 snippet if
-	if(${1:obj}) {
+	if (${1})
 		${0}
-	}
 #if not
 snippet ifn
-	if(!${1:obj}) {
+	if (!${1})
 		${0}
-	}
 #if-else
 snippet ife
-	if(${1:obj}) {
+	if (${1})
 		${2}
-	} else {
+	else
 		${0}
-	}
 #if-else-if
 snippet ifelif
-	if(${1:obj}) {
+	if (${1})
 		${2}
-	} else if(${3:obj}) {
+	else if (${3})
 		${0}
-	}
 snippet eif
-	else if(${3:obj}) {
+	else if (${3})
 		${0}
-	}
 #while loop
 snippet wh
 	while (${1:obj}) {