Cleaning up checkstyle and single line javadocs on fields

Attacking checkstyle complaints.

PMD bugs attack.

FingBugs Hunting.

issue#116 - tests accessing non-final fields to prevent code-clean finalization. Code Clean.

issue#116 reduce accidental finalicy

Issue 114 ; minor javadoc fix

Issue 114 ; minor API improvements to PText

Fixed Issue 113; made fullPick ignore a node and its children if that node is invisible.

issue#99 deprecate paramString and remove toString

issue#101 - throw a RTE wrappping the original EX.

issue#22 again without syntax check.

issue#110 - only whitespace and syntax. No semantic changes.

issue#99 undo r563 to repeat later in the agreed on style.

issue#22 undo r561 to repeat later in the agreed on style.

issue#101 - undo r562.

Issue 19, Issue 90 ; rolling back changes made in r395

Fixing implicit integer conversion by specifying that division is being done on an double.

Making FindBugs ignore Test classes. ...

Also, making PMD happier with a nested if.

Killing some FindBugs involving serialization.

issue#108 shut up hudson, part 3 - minor javadoc complaints.

Broke apart the name tests so that 1 test method tested 1 obvious behaviour

fix issue#99.

fix issue#101 by throwing RuntimeExceptions.

proposal to fix issue#22

Moving helper method to bottom of MouseListener to be consistent.

Fixed bug with refactoring. copy and paste. dang.

Removing unnecessary null checks in removeInputListeners. ...

Javadocs for Swing APIs explicitly declare that null may be passed and that no action will be taken when you do so.

Removed unnecessary check since all possible values of getButton() were covered there was no need to check for newButton == 0.

Refactored PCanvas code into more manageable private methods. Hooray for cleaner code.