merging in master from kpe.io

diff --cc ChangeLog
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+ 2015-08-12 Kevin Rosenberg <kevin@rosenberg.net>
+       * Version 6.6.3 release
+       * db-oracle/oracle-sql.lisp: Patch for PostgreSQL socket interface
+       for unicode characters. Thanks to Jason Melbye.
++      
 +2015-06-02 Daniel Kochmański <dkochmanski@turtle-solutions.eu>
 +      * clsql.asd, sql/package.lisp: Add ECL compatibility fixes
 +      * sql/db-interface.lisp: Fix declaration typo
 +
 +2015-04-06 Russ Tyndall <russ@acceleration.net>
 +      * sql/operations, sql/expressions: add postgresql E-string
 +      operator / expression.  Needed for correct regex handling
 +      EG: [E "some string"]=> E'some string'
  
+ 2015-03-30 Kevin Rosenberg <kevin@rosenberg.net>
+       * Version 6.6.2 release
+       * db-oracle/oracle-sql.lisp: Remove extra hyphen, thanks to
+       Thomas Vossen
++      
 +2015-03-24 Russ Tyndall <russ@acceleration.net>
 +      * sql/oodml.lisp: fixed call-next-method in the base of
 +      read-sql-value and replaced with a continuable
 +      sql-value-conversion-error
 +      * default read-sql-value for list
 +      * tests for sql-value-conversion-errors and list
 +
 +2015-03-18 Russ Tyndall <russ@acceleration.net>
 +      * {uffi,db-mysql}/Makefile: remove -pie build hardening for
 +      which caused load issues for Linux Mint
  
+ 2015-03-18 Kevin Rosenberg <kevin@rosenberg.net>
+       * Version 6.6.1 release
+       * {uffi,db-mysql}/Makefile: Remove pie from build
+       hardening options for Debian/Ubuntu systems. Thanks to
+       DJ <jakep@arqux.com> and Russ Tyndall <russ@acceleration.net>
+ 
  2015-02-26 Kevin Rosenberg <kevin@rosenberg.net>
        * Version 6.6.0 release
        * {uffi,db-mysql}/Makefile: Add build hardening for Debian