Enable the verify step on Travis
Fix style issues, add documentation
Merge branch 'master' into search-1.3.x
Clear the localThread when the index is refreshed

Clean up the local thread after each sites when doing a complete
reindexation or a complete refresh.
This cleanup should be in the larger tasks, not the smaller ones
Return null streams when file is too big

When a file is too heavy to be indexed, return a null stream, the
system will have to check that the stream is never null
Fix a confusing log message about file max size

The log shouldn't say "expected size", it's just the maximum supported
Merge branch 'master' into search-1.3.x
Fix typos in the documentation
Unify the one line comment style

Double slash followed by a space everywhere
Simplify copy from classpath to solr conf path
Add english stopwords
Add text_en_splitting for more precise searches
Add fieldType Text general for URLs and Text
Properly set SOLR_HOME and the core name during IT

The integration tests now need proper settings to load external files
(stopwords_en.txt) from the class path
Merge branch 'master' into search-1.3.x