Made the concurrent engine the default again.
Updated the license
Added a script to clean the logs in the base directory.
Updated the .gitignore to ignore configuration files in the base directory needed for individual runs from within intellij.
Improved the handling around cached images, falling back on restoring the data from the database when the ehcache fails.
Misc UI fixes.
Temporary fallback to the sequential engine as it works on remote files and consistently.
Massive cleanup work.
Need to go through code and do a little more cleanup.
Need to inspect why the concurrent engine chokes on remote files and multiple runs. (Nothing helpful in logs as of yet.)