Issue #19 reproducible with testcase
fix for issue #19
Clicking outside of the popup closes the popup
Feature: Size for the underlying textfield can now be changed
Conflicts:
	src/main/java/org/jdatepicker/JDatePicker.java
	src/main/java/org/jdatepicker/impl/JDatePickerImpl.java
Used findbugs to look for potential problems.
Fixes issues reported by CheckStyle and PMD
Merge remote-tracking branch 'bratkartoffel/issue19'

Conflicts:
	src/main/java/org/jdatepicker/impl/JDatePickerImpl.java
Removing unused ISSUES.txt file
Moved licence file
More fixes from PMD
Properties in pom file
No need to use the default properties to set it again in the configuration.
Ensure the project only uses java 1.5 APIs
Issue #30 fixed
Reverting some of the API changing modifications, so that master will build release 1.4.x
Redesigning the creation pattern of the widget.