added SpellingCheck
minor fix to TokenSearcherCheck
fixed mode of InstanceofUsageCheck
don't use diamond in CallHierarchyComplexitCheck
provide custom Main method ...

read in configuration xml file via stdin.
provide ListThings main class and checks...

for listing declarations of classes, methods in a java project
added Spelling module to checkstyle.xml
don't remember these changes...

might still be useful
added QualifiedListener...

to print out audit events slightly more structured
updated pom.xml ...

seems to work quite well now.
provide ControlFlowNestingDepthCheck
added whitelist of word for spell checking
updated gitignore
added check for usage of literals (number and string)
some updates to the SpellingCheck
fixed bug in the InstanceofCheck
fixed LiteralCheck...

- fixed command line parsing
- fixed messages