Merge remote-tracking branch 'datibbaw/kill-ereg'

Conflicts:
	ext/ereg/config.w32
	ext/ereg/config0.m4
	ext/ereg/ereg.c
	ext/ereg/php_ereg.h
	ext/ereg/php_regex.h
	ext/ereg/regex/engine.c
	ext/ereg/regex/main.c
	ext/ereg/regex/regcomp.c
	ext/ereg/regex/regerror.c
	ext/ereg/tests/split_error_002.phpt
	ext/ereg/tests/split_variation_003.phpt
	ext/ereg/tests/spliti_error_002.phpt
	ext/ereg/tests/spliti_variation_003.phpt
	ext/pgsql/pgsql.c
	sapi/apache/php_apache_http.h
	sapi/apache_hooks/php_apache_http.h