Updated Scalastyle to v1.1.0, which brings the following changes:

New Scalastyle rules (#342 - @mwz):

• New ForLoopChecker rule - omit braces if you have a yield clause, otherwise, surround the contents with curly-braces, even if the contents are only a single line.
• New WhileBraceChecker rule - it's recommended to never omit braces when using while.
• New CaseBraceChecker rule - braces aren't required in case clauses.

Scalastyle rule changes:

• HeaderMatchesChecker has a new parameter regex to indicate whether to treat the header string as a regular expression; defaults to false.
• MethodLengthChecker has a new parameter ignoreEmpty to exclude empty lines from being counted; defaults to false.
• ForBraceChecker has a new parameter singleLineAllowed to indicate whether a one-line for expressions with parentheses are allowed; defaults to false.
• NonASCIICharacterChecker has a new parameter allowStringLiterals to indicate whether non-ASCII scripts in string literals should be allowed; defaults to false.

All of the above rules are activated with the default parameter values in the Scalastyle, Scalastyle+Scapegoat and the Recommended by sonar-scala quality profiles.

The plugin is available for download from Bintray.