Fix an NPE when kicking off a Mobile test and update the IOSTest
Code changes to move the temporary file from tmp directory to selion workspace
Updated the SimpleLogger as follows;

a) Add ability to roll log files with 2 options (Max MB size and number of files to keep)
b) Updated methods to check the log level first
Fix RunTimeReporterHelper.

Use "mkdirs" to also create any parent directories of the Selion
WORK_DIR ("SelionFiles/SelionWorkdir").
Shorten the prefix and suffix of temporary files created for
RuntimeReporter

Conflicts:
	client/src/main/java/com/paypal/selion/reports/reporter/runtimereport/RuntimeReporterHelper.java
Added support for event listeners for actions done on elements provided by SeLion.
Update contribution #23 per review comments