HV-859 Allow to upload to the stable directory of the validator docs as well. A full copy is made, since symbolic links are not working via sftp
HV-834 Allowing for curly braces within EL expressions.

To do this I needed to explicitly track whether a expression is a parameter or EL expression
HV-814 Formatting
HV-814 Changing semantics of start and end index to always apply on the original input string, even if non digit characters are getting ignored

Also making the end index inclusive.
HV-812 Making @Mod10Check and @Mod11Check available in programmatic API
HV-814 Renaming checkDigitPosition into checkDigitIndex in order to have a consistent naming of constraint paramters
HV-799 Typo fix
HV-799 Adding new EAN constraint with tests and doc updates