Merge pull request #31 from nuodb/tgates/work

Add linux driver configuration section
Created test for PDO::ATTR_ERRMODE
Updated .travis.yml to output log
fixed test case for php 5.3
updated extension file - RINIT/RSHUTDOWN not needed
Removed RINIT/RSHUTDOWN
Revert "updated extension file - RINIT/RSHUTDOWN not needed"

This reverts commit b1aea3c6ae1d5c3390eb3527aa78a99bf457533f.
Updating test case with code review suggestions
Renamed file
Code review update
Merge branch 'vduda/work2' of github.com:nuodb/nuodb-php-pdo into vduda/work2
Cleaned comments.
updated test title
Deleted DB-6743/attr_errmode test
reverted travis.yml to original form
reverted commit of vduda/work3 to this branch
Changed NUOTESTPORT environment variable to default NUODB_PORT
DB-7003 -- add support to detect C++ API client version
DB-7003 -- add support to detect C++ API client version
DB-7003 -- add support to detect C++ API client version