changed version of card in AID to 2.0

- changed version of card in AID to 2.0
- changed length in copy for algAttrSign, algAttrDec, algAttrAuth to
variable
fixed change in applet AID to 2.0

- added removal of both 1.1 and 2.0 applet version (for GPShell script)
- extended capabilities comment
fixed introduced bug with generate command

if algAttrSign[7] == 0x01 will cause general fail during key generation
(possibly unsupported value)
//    private byte[] algAttrSign = { (byte)0xc1, (byte)0x06,
(byte)0x01,(byte)0x00, (byte)0x00, (byte)0x00, (byte)0x20, (byte)0x01};
card-relevant source files from gpg2
Merge pull request #19 from petrs/master

fixed generate command for RSA 2048b