fix SQL generation on table lock hint capable platforms
Added exception class names
added license badge
Merge pull request #914 from liuggio/patch-2

added license badge
Merge pull request #913 from WouterJ/patch-1

Added exception class names
Remove badges
Improved DQL's "new" operator documentation

I had to dig through the pull requests and issues to figure that out, so I believe it's best documented explicitly.
Improved DQL's "new" operator documentation
Merge pull request #915 from mnapoli/patch-1

Improved DQL's "new" operator documentation
Merge pull request #910 from deeky666/DDC-2310

[DDC-2310] [DDC-2675] Fix SQL generation on table lock hint capable platforms
Add warning about non scalar use in Criteria.
Delete old phing build leftover.
faild test with multiple HINT_CUSTOM_TREE_WALKERS

failed test when we have more than 1 walker HINT_CUSTOM_TREE_WALKERS ,
because walkSelectStatement in TreeWalkerChain saves the last hint _queryComponents result.
rename test
fix TreeWalkerChain.

Create walker object in foreach.
fix return walker
add iterator to tree walker chain
Merge pull request #2 from shustrik/multiplie_tree_walker

Multiplie tree walker bugfix
Merge branch 'master' into bugfix/join-with-condition-placement-fix