Qcommandlineparser (#199)

* Replaced getoptplusplus with QCommandLineParser. Fixes #39

* enabling C++11 if possible

* enabling C++11 if possible

* fixed gcc compilation issues

* fixed linux builds and improved os x build

* trying to fix dispmanx

* trying to fix dispmanx

* simplified travis build script

* fixed argumentparser default values

* rewrote validator system and made sure default arguments are processed correctly

* rewrote validator system and made sure default arguments are processed correctly

* fixed bool vs. regular options

* oops... removing debug code

* reverted screenshot api change

libsrc/commandline/Option.cpp

@@ -0,0 +1,26 @@
+#include "commandline/Option.h"
+#include "commandline/Parser.h"
+
+using namespace commandline;
+
+bool Option::validate(Parser & parser, QString &value)
+{
+	/* By default everything is accepted */
+    return true;
+}
+
+QString Option::value(Parser &parser)
+{
+    return parser.value(*this);
+}
+
+std::string Option::getStdString(Parser &parser)
+{
+    return value(parser).toStdString();
+}
+
+std::wstring Option::getStdWString(Parser &parser)
+{
+    return value(parser).toStdWString();
+}
+