EnvironmentType is now a class to allow more flexible environments
using Objects class utility methods and storing common environments in static attributes
fixing errors
adding grunt infos on vr-site README
development should be the default environment
fixing english [are -> is]
simplifying hashCode
minors on index.html, adding cdi infos and fixing link
fixed supports("true ") evaluating to false

Added trim() before converting the key (String -> boolean) to avoid
converting true to false silently
Using variables to get core dependency
Merge pull request #414 from tiagojco/fixEnvironmentSupportsBrokenEvaluationOfUntrimmedBoolean

fixed supports("true ") evaluating to false
Merge pull request #409 from csokol/flexible-environment-types

EnvironmentType is now a class to allow more flexible environments
fixing compilation error due to git merge
Merge pull request #411 from caelum/addingGruntInformationsOnSiteReadMe

adding grunt infos on vr-site README
Merge pull request #413 from caelum/addingCDIInfosOnSiteHome

minors on index.html, adding cdi infos and fixing link
Merge pull request #415 from garcia-jj/ot-fixed-versions

Using variables to get core dependency
Keep boring interface