Issue 229 ; update maven-checkstyle-plugin dependency version to 2.9

Issue 207 ; ignore mouse pressed and released events with button MouseEvent.NOBUTTON instead of throwing an exception

Issue 148 ; adding PSwingCameraBug to examples.pswing.issues package

Issue 186 ; moving PSwingMemoryLeakExample to examples.pswing.issues package, commit 2 of 2

Issue 186 ; moving PSwingMemoryLeakExample to examples.pswing.issues package, commit 1 of 2

Issue 186 ; adding org.piccolo2d.examples.pswing.issues package

Issue 221 ; adding ZeroWidthStrokeBug to examples.issues

Issue 186 ; moving issue-related examples to examples.issues package, commit 2 of 2

Issue 186 ; moving issue-related examples to examples.issues package, commit 1 of 2

Issue 186 ; adding org.piccolo2d.examples.issues package

removing empty directories from source trees

Issue 236 ; adding zoom event handler that responds to mouse wheel events

updating parent jdk.version to 1.5

Issue 235 - PSwingEventHandler now uses Point2D.Double in call to cameraToLocal to avoid under/overflow

Issue 231 ; doc fix, width --> height

Issue 227; (trunk) fixed bounds issue when replacing PCamera on a PCanvas; added relevant tests

updating maven javadoc plugin version to 2.8

updating maven javadoc plugin version to 2.8

- small javadoc change to fix javadoc warnings

Issue 217; adding/replacing license headers

Converting tabs to spaces in PSwingTest.

Issue 173; merged from branch; added @param and @since to PSwing.setUseBufferedPainting; added unit test to cover buffered painting branch in PSwing.

Issue 173; (merge from branch) Introduced useBufferedPainting option to PSwing. Used much of the original buffered painting implementation details from Piccolo2D 1.2. Also added PSwingExample4 which extends PSwingExample1 but turns on buffered painting for all of the PSwing nodes.

update maven-gpg-plugin dependency version to 1.2

Issue 195 ; mock painting methods were missing logic in PSwing.paint(PPaintContext)

Issue 205 ; updating copyright year in license header to 2011

Issue 205 ; updating copyright year in license header to 2011

updating maven plugin and maven report plugin versions

Applied fixes from the piccolo 1.3 branch to trunk, see issue 163

applying doc & style patch from Issue 204