Fix process keyword coloring

Fixes process keyword coloring when used as part of namespace (#47)

Author: kborowinski

PowerShellSyntax.tmLanguage

@@ -248,7 +248,7 @@
 		</dict>
 		<dict>
 			<key>match</key>
-			<string>(?&lt;!\w|-)((?i:begin|break|catch|continue|data|default|define|do|dynamicparam|else|elseif|end|exit|finally|for|foreach(?!-object)|from|if|in|inlinescript|parallel|param|process|return|switch|throw|trap|try|until|var|where(?!-object)|while)|%|\?)(?!\w)</string>
+			<string>(?&lt;!\w|-|\.)((?i:begin|break|catch|continue|data|default|define|do|dynamicparam|else|elseif|end|exit|finally|for|foreach(?!-object)|from|if|in|inlinescript|parallel|param|process|return|switch|throw|trap|try|until|var|where(?!-object)|while)|%|\?)(?!\w)</string>
 			<key>name</key>
 			<string>keyword.control.powershell</string>
 		</dict>