Make automatic replacement for chars that can be used in project name but aren't allowed to be used in package name. For example: '-' (minus) char is valid to be used in project name but not in package name.

Test Case:
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EXECUTE: Open New Seam Web Project Wizard due to create a project
EXECUTE: Type in a project name that contains '-' chars, for example: "my-first-seam-project"
EXECUTE: Press "Next >" button untill the "Seam Facet" wizard page leaving the other fields with their default values.
ASSERT: See the package names in "Code Generation" facet are fulfiled with correct package names (all the '-' (minus) chars are replaced with a valid char for a package name, for example by '_'-char): "org.domain.my_first_seam_project.session", "org.domain.my_first_seam_project.entity" and "org.domain.my_first_seam_project.test"
ASSERT: "Finish" button is enabled and no error messages appear in the title.