Cleaning up Javadoc

[codecov[bot]]

Codecov Report

Merging #212 (70400da) into master (329a63e) will decrease coverage by 0.01%. The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #212      +/-   ##
==========================================
- Coverage   19.78%   19.76%   -0.02%     
==========================================
  Files         165      165              
  Lines       10534    10534              
  Branches     1403     1403              
==========================================
- Hits         2084     2082       -2     
- Misses       8253     8254       +1     
- Partials      197      198       +1     

Impacted Files	Coverage Δ
.../src/main/java/org/bridgedb/bio/DataSourceTxt.java	89.13% <ø> (ø)
.../src/main/java/org/bridgedb/mysql/MySQLAccess.java	0.00% <ø> (ø)
...db.sql/src/main/java/org/bridgedb/sql/SQLBase.java	0.00% <ø> (ø)
...ql/src/main/java/org/bridgedb/sql/SQLIdMapper.java	0.00% <ø> (ø)
...ql/src/main/java/org/bridgedb/sql/SQLListener.java	0.00% <ø> (ø)
...sql/src/main/java/org/bridgedb/sql/SqlFactory.java	0.00% <ø> (ø)
...ain/java/org/bridgedb/virtuoso/VirtuosoAccess.java	0.00% <ø> (ø)
...gedb.uri.api/src/org/bridgedb/uri/api/Mapping.java	0.00% <ø> (ø)
...ri.api/src/org/bridgedb/uri/api/MappingsBySet.java	0.00% <ø> (ø)
...b.uri.api/src/org/bridgedb/uri/api/UriMapping.java	0.00% <ø> (ø)
... and 24 more

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[egonw]

Applied the patch manually.