Fix for: Values can't start with a slash

This fixes #26 . The values can also start with a slash. All 44 tests are passing with this change.

Author: MatthiasJentsch

Utility.CommandLine.Arguments/Arguments.cs

@@ -147,7 +147,7 @@ public class Arguments
         /// <summary>
         ///     The regular expression with which to parse the command line string.
         /// </summary>
-        private const string ArgumentRegEx = "(?:[-]{1,2}|\\/)([^=: ]+)[=: ]?(\\w\\S*|\\\"[^\"]*\\\"|\\\'[^']*\\\')?|([^ ([^'\\\"]+|\"[^\\\"]+\"|\\\'[^']+\\\')";
+        private const string ArgumentRegEx = "(?:[-]{1,2}|\\/)([^=: ]+)[=: ]?(\\/?\\w\\S*|\\\"[^\"]*\\\"|\\\'[^']*\\\')?|([^ ([^'\\\"]+|\"[^\\\"]+\"|\\\'[^']+\\\')";
 
         /// <summary>
         ///     The regular expression with which to parse argument-value groups.
@@ -668,4 +668,4 @@ private static string TrimOuterQuotes(string value)
     public class OperandsAttribute : Attribute
     {
     }
-}
+}