Updated IO classes to handle TikaExceptions
Allow the use of custom feed list. The feed list must be named as "CustomFeedsList.csv" and be placed in the root of Rocksteady's data directory. The list should follow the same format as the embedded feed lists.
Fixed a few bugs w.r.t. the extraction of content from HTML files.
Merge branch 'feature/customFeedList' into develop
Another update to exclude log files.