Rename GaussLegendre to GL to match the same convention for integration

module naming #24
(modification agreed with Herve during his stay in Warsaw)

include/NumA/integration/one_dimension/IntegratorType1D.h

@@ -31,7 +31,7 @@ public:
 		UNDEFINED = 0, //!< Undefined type.
 		TRAPEZOIDAL = 1, //!< Trapezoidal method with a fixed number of equidistant steps.
 		TRAPEZOIDALLOG = 2, //!< Trapezoidal method with a fixed number with equidistantly distributed steps in [ln(min), ln(max)] range.
-		GaussLegendre = 3, //!< Gauss-Legendre method with a fixed number of steps.
+		GL = 3, //!< Gauss-Legendre method with a fixed number of steps.
 		DEXP = 4, //!< Adaptive double exponential method.
 		GK21_ADAPTIVE = 5  //!< Adaptive Gauss-Kronrod method with 21 point rules.
 	};

src/NumA/integration/one_dimension/Integrator1D.cpp

@@ -41,7 +41,7 @@ Integrator1D* Integrator1D::newIntegrator(
     case IntegratorType1D::TRAPEZOIDALLOG:
         return new TrapezoidalLogIntegrator1D();
         break;
-    case IntegratorType1D::GaussLegendre:
+    case IntegratorType1D::GL:
         return new GaussLegendreIntegrator1D();
         break;
     case IntegratorType1D::DEXP:

src/NumA/integration/one_dimension/IntegratorType1D.cpp

@@ -22,8 +22,8 @@ IntegratorType1D::IntegratorType1D(const std::string& integratorType1DString) {
 			"TRAPEZOIDALLOG")) {
 		m_type = IntegratorType1D::TRAPEZOIDALLOG;
 	} else if (ElemUtils::StringUtils::equals(integratorType1DString,
-			"GaussLegendre")) {
-		m_type = IntegratorType1D::GaussLegendre;
+			"GL")) {
+		m_type = IntegratorType1D::GL;
 	} else if (ElemUtils::StringUtils::equals(integratorType1DString, "DEXP")) {
 		m_type = IntegratorType1D::DEXP;
 	} else if (ElemUtils::StringUtils::equals(integratorType1DString,
@@ -52,8 +52,8 @@ std::string IntegratorType1D::toString() const {
 	case TRAPEZOIDALLOG:
 		return "TRAPEZOIDALLOG";
 		break;
-	case GaussLegendre:
-		return "Gauss-Legendre";
+	case GL:
+		return "GL";
 		break;
 	case DEXP:
 		return "DEXP";
@@ -74,7 +74,7 @@ std::string IntegratorType1D::getShortName() {
 	case TRAPEZOIDALLOG:
 		return "TRAPEZOIDALLOG";
 		break;
-	case GaussLegendre:
+	case GL:
 		return "GL";
 		break;
 	case DEXP: