Update docs/languages/en/user-guide/unit-testing.rst

Typo under create bootstrap.php section, should say "Create a file called" not "A file called"
Update docs/languages/en/user-guide/database-and-models.rst

Added opening <?php tag for model unit test
Merge pull request #629 from motobreath/patch-1

Update docs/languages/en/user-guide/unit-testing.rst
Merge pull request #631 from motobreath/patch-2

Update docs/languages/en/user-guide/database-and-models.rst
Merge pull request #627 from Ore4444/patch-69

Update docs/languages/en/index.rst
Fixed indentation.
Fix for missing breakline!
Fixed return type!
Fixed namespace slashes!
Merge pull request #636 from wryck7/fix/docs/languages/en/modules/zend.form.element.button.rst

Fixed namespace slashes!
Merge pull request #634 from wryck7/fix/docs/languages/en/modules/zend.cache.pattern.capture-cache.rst

Fix/docs/languages/en/modules/zend.cache.pattern.capture-cache.rst
Merge pull request #633 from wryck7/fix/docs/languages/en/modules/zend.cache.pattern.object-cache.rst

Fixed indentation.
Reverted to the non-capitalized titles.

As per @Maks3w 's request.
Merge branch 'patch-68' of https://github.com/Ore4444/zf2-documentation into Ore4444-patch-68
Merge branch 'Ore4444-patch-68'
Merge branch 'Ore4444-patch-68' into develop
Fixed conflicts in unit-testing.rst
Merge branch 'blanchonvincent-feature/docs/languages/en/modules/zend.test'
Merge branch 'blanchonvincent-feature/docs/languages/en/modules/zend.test' into develop
Changed the Manual Installation of ZFTool