Fixed boolean/integer BC break.

Booleans and integers were being inadvertently converted to strings when
saved in the config array. This preserves the datatype.
Fixed setter test for label option
Fixed always wrap default test
Changed accessing of label options inside of view helpers to use getLabelOption instead of checking plain array keys
Removed default label options and fixed tests accordingly. Also added label options accessors in trait
Added exception test for setLabelOptions
Added unsetValueOption() to the Form\Element\Select and Form\Element\MultiCheckbox
Merge pull request #5545. Fix #5544 in develop
Merging #5032
Merge branch 'zf3956' of git://github.com/tux-rampage/zf2 into tux-rampage-zf3956

* 'zf3956' of git://github.com/tux-rampage/zf2:
  Added metadata for oracle See issue #3956
Merging #5032
Merge branch 'tux-rampage-zf3956' into develop

* tux-rampage-zf3956:
  Added metadata for oracle See issue #3956
Updated Form\Element\Select & MultiCheckbox, fixed unsetValueOption() @return self
Merge PR #5211
Merge branch 'zf5094' of git://github.com/thepauleh/zf2 into thepauleh-zf5094

* 'zf5094' of git://github.com/thepauleh/zf2:
  Get the connected dsn string that is now stored when the pdo connection is made
Simplification of DSN retrieval from PDO Connection class
Merging PR #5211 to develop
Merge branch 'thepauleh-zf5094' into develop

* thepauleh-zf5094:
  Simplification of DSN retrieval from PDO Connection class
  Get the connected dsn string that is now stored when the pdo connection is made
Merging PR #5069
Merge branch 'fix/zend-db-adapter-driver-pdo' of git://github.com/brian978/zf2 into brian978-fix/zend-db-adapter-driver-pdo

* 'fix/zend-db-adapter-driver-pdo' of git://github.com/brian978/zf2:
  Fixed bug that caused the PDO to throw an invalid keyword error
Added some integration tests for PDO driver Statement & Connection class
Merging PR #5069 into develop
Merge branch 'brian978-fix/zend-db-adapter-driver-pdo' into develop

* brian978-fix/zend-db-adapter-driver-pdo:
  Added some integration tests for PDO driver Statement & Connection class
  Fixed bug that caused the PDO to throw an invalid keyword error
Forward #5577
Merge branch 'imel96-zf4707' into develop

* imel96-zf4707:
  Added the sequence name to getLastGeneratedValue() which is required for Pos tgreSQL.
Forward #5552
Merge branch 'pceric-master' into develop

* pceric-master:
  Removed 'driver_options' from oci8 connection class parameters
  Add driver options to the Oci8 Db adapter
Merge pull request #5582 in develop