Add driver options to the Oci8 Db adapter
Fix graphme_substr for PHP >= 5.4.18 or >=5.5.1

Due the changes introduced in the intl extension for fix #62759 now the third argument returns an empty string if is null or 0

Open bug #66219 due the BC break introduced in the previous change.
Skip test if Intl extension is not loaded
Apply workaround just for null value
Added the sequence name to getLastGeneratedValue() which is required for Pos
tgreSQL.
Merging PR #5577
Merge branch 'imel96-zf4707'

* imel96-zf4707:
  Added the sequence name to getLastGeneratedValue() which is required for Pos tgreSQL.
Merging PR #5552
Merge branch 'master' of git://github.com/pceric/zf2 into pceric-master

* 'master' of git://github.com/pceric/zf2:
  Add driver options to the Oci8 Db adapter
Removed 'driver_options' from oci8 connection class parameters
Merging PR #5552
Merge branch 'pceric-master'

* pceric-master:
  Removed 'driver_options' from oci8 connection class parameters
  Add driver options to the Oci8 Db adapter
Fixed const typo
Merge pull request #5582
Merge pull request #5582 in master
Merge pull request #5576 from Maks3w/feature/travis-fast-finish

Enable Travis Fast finishing
Merge branch 'hotfix/5576'

Close #5576
Merge pull request #5575 from Maks3w/hotfix/php-62759

Fix graphme_substr for PHP >= 5.4.18 or >=5.5.1
[#5575] Fix skip message

- s/intl/iconv/
Merge branch 'hotfix/5575'

Close #5575
Improvement to #5254

- Do not check on the writer name, only the presence, type, and
  availability of the "db" option value.

  See https://github.com/zendframework/zf2/pull/5254#issuecomment-27776073
Merging PR #5588
Merge branch 'weierophinney-hotfix/5254-improvement'

* weierophinney-hotfix/5254-improvement:
  Improvement to #5254
Fix minor grammar error in README-GIT.md