fixing small coverity issues: 751966 Argument cannot be negative,
1111399 Explicit null dereferenced and 1111488 Uninitialized scalar variable
prepare 3.3.4
prepare 3.3.4
Fis typos
Fix typos
Explicitly stats that the number of slaves is not necessarily 1.
Split pgpool_regclass and pgpool_recovery as a separate extension package.

On PostgreSQL server, only the extension package is required, no
pgpool full package is necessary.
Per Andrew N Golovkov.
Fix typo in an error message.

Per Scalia, John.
Fix wrong SSL configure option in the RPM spec file.

SSL enabling option is "--with-openssl=/usr" and this is wrong. This
should be "--with-openssl". Per bug #115.
Update history.
Fix typo in docs.

Per Yaron Naveh.
Update history.