Update travis.ci

Signed-off-by: willmendesneto <willmendesneto@gmail.com>
Update phpunit.xml

Signed-off-by: willmendesneto <willmendesneto@gmail.com>
Update phpunit for to use bootstrap_phpunit file in travis.ci

Signed-off-by: willmendesneto <willmendesneto@gmail.com>
Modifying tests suite

Signed-off-by: willmendesneto <willmendesneto@gmail.com>
Update travis commands

Signed-off-by: willmendesneto <willmendesneto@gmail.com>
Modifying composer.json

Signed-off-by: willmendesneto <willmendesneto@gmail.com>
Modifying phpunit call in travis.ci

Signed-off-by: willmendesneto <willmendesneto@gmail.com>