Fix for class file license headers missing / with some typos

Author: Vytautas Kasparavičius

src/Hangfire.PostgreSql/PostgreSqlDistributedLock.cs

@@ -1,5 +1,5 @@
 // This file is part of Hangfire.PostgreSql.
-// Copyright � 2014 Frank Hommers <http://hmm.rs/Hangfire.PostgreSql>.
+// Copyright © 2014 Frank Hommers <http://hmm.rs/Hangfire.PostgreSql>.
 // 
 // Hangfire.PostgreSql is free software: you can redistribute it and/or modify
 // it under the terms of the GNU Lesser General Public License as 

src/Hangfire.PostgreSql/Utils/TryExecute.cs

@@ -1,4 +1,25 @@
-using System;
+// This file is part of Hangfire.PostgreSql.
+// Copyright © 2014 Frank Hommers <http://hmm.rs/Hangfire.PostgreSql>.
+// 
+// Hangfire.PostgreSql is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as 
+// published by the Free Software Foundation, either version 3 
+// of the License, or any later version.
+// 
+// Hangfire.PostgreSql  is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Lesser General Public License for more details.
+// 
+// You should have received a copy of the GNU Lesser General Public 
+// License along with Hangfire.PostgreSql. If not, see <http://www.gnu.org/licenses/>.
+//
+// This work is based on the work of Sergey Odinokov, author of 
+// Hangfire. <http://hangfire.io/>
+//   
+//    Special thanks goes to him.
+
+using System;
 using Npgsql;
 
 namespace Hangfire.PostgreSql