roughed in MATLAB Theme

...-demo/src/main/java/com/xeiam/xchart/demo/XChartDemo.java

...java/com/xeiam/xchart/demo/charts/theme/ThemeChart01.java

...java/com/xeiam/xchart/demo/charts/theme/ThemeChart02.java

...java/com/xeiam/xchart/demo/charts/theme/ThemeChart03.java

...c/main/java/com/xeiam/xchart/standalone/ErrorBarTest.java

.../main/java/com/xeiam/xchart/standalone/ErrorBarText2.java

xchart/src/main/java/com/xeiam/xchart/SeriesLineStyle.java

xchart/src/main/java/com/xeiam/xchart/StyleManager.java

...va/com/xeiam/xchart/internal/chartpart/AxisTickMarks.java

...java/com/xeiam/xchart/internal/chartpart/PlotSurface.java

...in/java/com/xeiam/xchart/internal/style/GGPlot2Theme.java

...ain/java/com/xeiam/xchart/internal/style/MatlabTheme.java

.../src/main/java/com/xeiam/xchart/internal/style/Theme.java

...ain/java/com/xeiam/xchart/internal/style/XChartTheme.java