Support comments after @import statements

Fixed #215

Author: madskristensen

src/WebCompiler/Dependencies/SassDependencyResolver.cs

@@ -50,7 +50,7 @@ public override void UpdateFileDependencies(string path)
                 string content = File.ReadAllText(info.FullName);
 
                 //match both <@import "myFile.scss";> and <@import url("myFile.scss");> syntax
-                var matches = Regex.Matches(content, @"(?<=^@import(?:[\s]+))(?:(?:\(\w+\)))?\s*(?:url)?(?<url>.+?)$", RegexOptions.Multiline);
+                var matches = Regex.Matches(content, @"(?<=^@import(?:[\s]+))(?:(?:\(\w+\)))?\s*(?:url)?(?<url>[^;]+)", RegexOptions.Multiline);
                 foreach (Match match in matches)
                 {
                     var importedfiles = GetFileInfos(info, match);

src/WebCompilerTest/artifacts/scss/test.scss

@@ -1,4 +1,4 @@
-@import "variables",  "sub/foo";
+@import "variables",  "sub/foo"; // Bootstrap overrides
 
 body {
     background-color: $background;