Added acceptance tests for colorpicker presence

signed-off-by: Pedro Bruel <pedro.bruel@gmail.com>
Added test to check valid color from color picker

signed-off-by: Pedro Bruel <pedro.bruel@gmail.com>
Remove @wip tag
Merge pull request #74 from mezuro/colorpicker_test

Colorpicker test
Redirect update url to correct controller

CompoundMetricConfigurationController was using update method from
MetricConfigurationController

signed-off-by: Pedro Paulo Vezza Campos <pedro@vezza.com.br>
Missing method update on the compound metric class

signed-off-by: Thiago Kenji Okada <thiago.mast3r@gmail.com>
Added unit tests for the update method

signed-off-by: Pedro Paulo Vezza Campos <pedro@vezza.com.br>
Added acceptance test to Compound Metric edit configuration

signed-off-by: Pedro Paulo Vezza Campos <pedro@vezza.com.br>
Fixes message of successful compound metric update

signed-off-by: Thiago Kenji Okada <thiago.mast3r@gmail.com>