Added DDL section
Added Literal vs. Expression to SQL section
Update zend.mvc.routing.rst

Typo in namespace
Merge pull request #871 from ecolinet/patch-1

Update zend.mvc.routing.rst
Merge branch 'hotfix/871'

Close #871
Fixed formatting of class, variable names in DDL ans SQL pages
Fixed DDL imports
Fixed note section in SQL section
Merge pull request #870 from ralphschindler/feature/ddl

[WIP] Zend\Db additions
[#870] Incorporate feedback, edit

- Incorporated feedback
- Fixed tables
- Minor grammatical/flow edits
Merge branch 'hotfix/870'

Close #870
[#870] Fix constraints table

- one row was not long enough!
Merge branch 'hotfix/870'

Fix rendering issue in table
fix typos
Update zend.mail.attachments.rst

Rewrote the whole page since it was just a copy of ZF1 docs with namespaces.
correct some class names
saveAlbum() accepts Album class, not an array
Closed ')'
Merge branch 'hotfix/#880'

Close #880
Merge branch 'patch-1' of https://github.com/nikai3d/zf2-documentation into hotfix/#873
Merge branch 'hotfix/#873'

Close #873
Merge branch 'patch-3' of https://github.com/gennadiylitvinyuk/zf2-documentation into hotfix/#881