Constify streams API and a few other calls down the rabbit hole.
(`char *` to `const char *` for parameters and few return values)
In a few places int len moved to size_t len.
Merge branch 'pull-request/399'
Give 'make distclean' some love. Clean files created by AC_OUTPUT, shell redirection etc.
Merge branch 'PHP-5.5'

* PHP-5.5:
  Give 'make distclean' some love. Clean files created by AC_OUTPUT, shell redirection etc.
Clean generated OCI8 DTrace files in 'make distclean'
Merge branch 'master' of https://git.php.net/repository/php-src

* 'master' of https://git.php.net/repository/php-src:
  Constify streams API and a few other calls down the rabbit hole. (`char *` to `const char *` for parameters and few return values) In a few places int len moved to size_t len.