Merge pull request #46 from havvg/master

fix example php code on sequence generator
Added cookbook/decorator-pattern to index file
Corrected a typo (interveawed)
Merge pull request #47 from mdpatrick/interveawed_association_mapping

Corrected a typo (interveawed)
Fixes DDC-509
Add docs on SimplifiedXmlDriver and SimplifiedYamlDriver
More details on partial objects
Enhanced docs on UnitOfWork#computeChangeSets
two typos fixed
Merge pull request #48 from cordoval/patch-1

two typos fixed
typo change from contains to consists of
Merge pull request #49 from cordoval/patch-2

typo change from contains to consists of
Merge pull request #45 from oyerli/patch-1

Fixed typo in the orderBy method.
Merge pull request #44 from mweimerskirch/patch-1

Documented the onClear event
Merge pull request #43 from marcw/patch-1

Fixed namespace in code-block
Merge pull request #27 from chriswoodford/persisting-the-decorator

Persisting the decorator
corrected rst for bash like code blocks
Document AbstractQuery#getOneOrNullResult()
Update en/reference/working-with-objects.rst
Merge pull request #51 from asm89/patch-1

Fix typos in 'Working with objects' php examples