Get rid of dependencies on v8.h in public header files

src/JsError.cpp

Index: src/JsError.cpp
===================================================================
new file mode 100644
--- /dev/null
+++ b/src/JsError.cpp
@@ -0,0 +1,24 @@
+/*
+ * This file is part of Adblock Plus <http://adblockplus.org/>,
+ * Copyright (C) 2006-2013 Eyeo GmbH
+ *
+ * Adblock Plus is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3 as
+ * published by the Free Software Foundation.
+ *
+ * Adblock Plus 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "JsError.h"
+
+AdblockPlus::JsError::JsError(const v8::Handle<v8::Value> exception,
+    const v8::Handle<v8::Message> message)
+  : std::runtime_error(ExceptionToString(exception, message))
+{
+}