Re: [pgjdbc] Implement JDBC specs via pre-processor step (#435)

> Why do you need #495 change then?

There were 3 maven dependencies which missed from Fedora.
java-comment-preprocessor, osgi-enterprise and waffle-jna.

About java-comment-preprocessor we agreed that you will continue used it so we added it in form of RPM into Fedora.
About osgi-enterprise I simply delete content of folder pgjdbc/src/main/java/org/postgresql/osgi and It works without
it.

waffle-jna was the hardest because I had to patch the code. I could have just patch out code wich use waffle, but this
way

if you made some changes patch would not apply update of postgresql-jdbc. So I tried to create this patch which can
workwithout problem 
with official release (aka it's not a hack, java decide which class should load during runtime)
and compiler is OK when I delete pgjdbc/src/main/java/org/postgresql/sspi/SSPIClient.java.

Pavel Kajaba.