Asset::getVAlues() corrected
Portfolio::getValues() function without parameters created
Asset::getValues() method without parameters created
In Asset::getValues(...): exception added for invaled parameters
Comments corrected
Comments completed
Few indentations corrected
Merge pull request #8 from pchaigno/getters-patch

Patch pour le problème d'ordre dans les fichiers CSV.
Merge branch 'master' into import