Log Message:
Update to 3.0.5

Changelog:
* Noteworthy changes in release 3.0.5 (2018-05-27) [stable]

** Bug fixes

*** C++: Fix support of 'syntax_error'

  One incorrect 'inline' resulted in linking errors about the constructor of
  the syntax_error exception.

*** C++: Fix warnings

  GCC 7.3 (with -O1 or -O2 but not -O0 or -O3) issued null-dereference
  warnings about yyformat being possibly null.  It also warned about the
  deprecated implicit definition of copy constructors when there's a
  user-defined (copy) assignment operator.

*** Location of errors

  In C++ parsers, out-of-bounds errors can happen when a rule with an empty
  ride-hand side raises a syntax error.  The behavior of the default parser
  (yacc.c) in such a condition was undefined.

  Now all the parsers match the behavior of glr.c: @$ is used as the
  location of the error.  This handles gracefully rules with and without
  rhs.

*** Portability fixes in the test suite

  On some platforms, some Java and/or C++ tests were failing.