Make Symbol class not a sub-class of a form.
Merge branch 'master' of https://github.com/dakusui/petronia.git
Add jcoverage.ser to .gitignore.
Make string returned by toString(Object obj) method a bit more concise
when obj is an instance of Class object.
Add more informative string when tests are executed.
Change package name from com.github.dakusui.lij to
com.github.dakusui.lisj
Change package name from com.github.dakusui.lij to
com.github.dakusui.lisj.
Add dependency on log4j and slf4j to pom.xml.
Add log4j.properties for tests.
Add reporting mechanism.