databases/cego: 2.30.24 -> 2.30.26

• Fix in CegoFunction::evalFieldValue, for functions date2str, date2int, int2date, type casting to appropriate type has been added. Without the cast, the functions might return wrong results
• Adaptions for CegoBlowTab to use CegoNet API
• Completion for blob methods in CegoNet
• Improved flow control in CegoClient ( based on ncurses )
• Optimization in CegoClient, just high level CegoNet API methods are used now for client implementation. Missing methods have been added to CegoNet API

Submitted by: Bjoern Lemke <lemke@lemke-it.com>