Fix SimpleJdbcCall and SimpleJdbcInsert Javadoc

Change "fluid" interface to "fluent" and "string" to "chain", plus fix
few typos in Javadoc.

Issue: SPR-10792
Merge pull request #325 from Xaerxess/patch-1

# By Grzegorz Rożniecki
* patch-1:
  Fix SimpleJdbcCall and SimpleJdbcInsert Javadoc