Merge pull request #91 from hayato1980/master

fix error: using selenese-runner-java in jenkins plugin, StackOverflowError is occured.
add —define option for setting capabilities of WebDriver. (issue #92)
update document.
update dependencies.
[maven-release-plugin] prepare release selenese-runner-java-1.3.3
[maven-release-plugin] prepare for next development iteration
support “-D key+=value” for String[] capability. (issue #92)
fix NPE.
fix issue #93.
next release version is 1.3.4.
Update document.
result to string converter support Iterable and Iterator.
PrintStream object for logging is changed to the instance variable of Runner from static variable.
update document.
If use "+=" in --define, DesiredCapabilities value is always "String[] { value }".
fix issue #94.
ad-hoc fix issue #94.
note: ignore optionLocator in highlighting mode.
[maven-release-plugin] prepare release selenese-runner-java-1.3.4
[maven-release-plugin] prepare for next development iteration
fix issue #96.