Issue in the ByteBuffer class, in particular, methods appendCString and removeCString are using a different charset encoding.

[vasyaod]

The method appendCString adds a string as ASCII, in the time the method removeCString reads one as GSM7BIT, although it should use ASCII.

A next trouble follows from this issue: If we try to connect some EMSE using OpenSmpp to some SMSC using OpenSmpp and we use special symbols in login/password like '[]-' then login/password will be different in BindRequest and BindResponse entities.

[ruskotron]

I have noticed this issue too. I think the issue is in the 'removeCString' bit because the SMPP spec says all Strings should be ASCII. See section 3.1 (p36) http://www.smstrade.de/pdf/smpp.pdf