cleaned up examples

README.md

...n/java/com/xeiam/xchart/demo/charts/area/AreaChart01.java

...ain/java/com/xeiam/xchart/demo/charts/bar/BarChart05.java

...n/java/com/xeiam/xchart/demo/charts/date/DateChart02.java

...n/java/com/xeiam/xchart/demo/charts/date/DateChart03.java

...n/java/com/xeiam/xchart/demo/charts/date/DateChart04.java

...n/java/com/xeiam/xchart/demo/charts/date/DateChart05.java

...n/java/com/xeiam/xchart/demo/charts/date/DateChart06.java

...n/java/com/xeiam/xchart/demo/charts/date/DateChart07.java

.../com/xeiam/xchart/demo/charts/scatter/ScatterChart01.java

...o/src/main/java/com/xeiam/xchart/standalone/Example0.java

...o/src/main/java/com/xeiam/xchart/standalone/Example1.java

...o/src/main/java/com/xeiam/xchart/standalone/Example2.java

...est/java/com/xeiam/xchart/DateAxisTickCalculatorTest.java

xchart/src/test/java/com/xeiam/xchart/DateFormatterTest.java

.../java/com/xeiam/xchart/DecimalAxisTickCalculatorTest.java

...t/src/test/java/com/xeiam/xchart/NumberFormatterTest.java

xchart/src/test/java/com/xeiam/xchart/chart/LineChart05.java

xchart/src/test/java/com/xeiam/xchart/chart/LineChart06.java