Fixed the installation of HHVM nightly on Travis
Added new test WriteTest::testEmptyIdentityInsert().
Merge pull request #524 from josemalonsom/add-test-empty-identity-insert

Added new test WriteTest::testEmptyIdentityInsert().
Tried fixing the HHVM installation again
Merge pull request #574 from stof/patch-1

Fixed the installation of HHVM nightly on Travis
Add composer.lock and .idea/ to .gitignore
Simplify FQNs in Column
Improve type docs in ColumnDiff
Add missing @param tag
Merge pull request #579 from JeroenDeDauw/fixdoc

Add missing @param tag
Merge pull request #578 from JeroenDeDauw/typedoc

Improve type docs in ColumnDiff
Simplify FQNs and use "Type[]" instead of "array"
Use @return self instead of @return Table
Merge pull request #577 from JeroenDeDauw/fqn

Simplify FQNs in Column
Merge pull request #576 from JeroenDeDauw/gitignore

Add composer.lock and .idea/ to .gitignore
Fix CQS issue in _createIndex
Merge pull request #580 from JeroenDeDauw/Table

Documentation and style improvements to Table
Get rid of weird ternary statement
Various doc imporvements in Index
Merge pull request #582 from JeroenDeDauw/index

Various doc imporvements in Index