Updating DoctrineMigrationsBundle for Doctrine Migrations 2.0

Update index.rst

There is no reason for the use ContainerInterface with the ContainerAwareTrait.

Update configuration options documentation

Add the default value for `custom_template` and mark it as available since v1.2

Use PHPUnit\Framework\TestCase instead of PHPUnit_Framework_TestCase

Add method_exists to avoid fatal error

Fixes #207
Fixes #217

To ensure we have the forward compatibility layer (for PHPUnit 6+).

Related error:
```
[Symfony\Component\Debug\Exception\UndefinedMethodException]
Attempted to...

Removing the copyright header

Add travis-ci configuration

Drop symfony 2.3 support, allow 4.0

Add command registration to fix Symfony 3.4 auto-registration deprecation

Ability to change the class template

Update index.rst. Missing "organize_migrations" in documentation

Missing "organize_migrations" option than has been added in #153.
This is information help to kn...

Allow to use migration diff when using only DBAL

Proposed some updates to the README file

Updated condition to prevent error on existing dir

Make 2 examples for clarity

Use ContainerAwareTrait in example if possible

Fix Symfony 3.0 console path

Update composer.json

make organize-migrations usable in XML configs

This fixes #175.

Added additional check if directory exists.

The is_dir() condition should be checked before trying to create the directory. In case, the dir...

Fix #146

Check DB option before proceeding to EM configuration

Added docblocks

Update DoctrineCommand.php

Update DoctrineCommand.php

This condition execution costs less than previous one

[UPDATE] Add return statements of parent class

Added support of the organize migrations configuration.

Add xml schema definition

Useful for IDE autocompletion.

Add doc for "doctrine:migrations:version" command

Ref #148

Update composer.json

Requires PHP >= 5.4.0

Add --shard option to migrations command

Update DoctrineMigrationsBundle

Since first stable release of doctrine migrations is out

Constraint for a stable migartion version

make the yaml comment syntax valid

The coloration will not work otherwise

`//` works in php, but does not mean anything in yaml

fix branch alias version

don't call a method inside empty()

Prior to PHP 5.5, `empty()` only handles variables.

Allowed DoctrineMigrationsBundle to work with Symfony apps using DBAL only

Fix typo in documentation

In the part "Generating Migrations Automatically" there is a mapping
information sample for crea...

We finally got a stable tag!

Allow symfony 3.0 components

Tests should tell if any deprecated interfaces of Symfony are used. If not, then the bundle is d...

Removing the erroneous example

Getting the EntityManager in the postUp method is flawed: if you have several unexecuted migrati...

Update requires

Correct overwritten configuration