Fixed bug in sh app - memory corruption when you delete more characters then you...

Fixed bug in sh app - memory corruption when you delete more characters then you wrote; Added new function to
libzde - zgui_puts () and zgui_resize (); Added EXIT state to appsrv/appcl for succefull exit when you click
on the window's cross; Improved MOVE state of window; Added some comments to ZDE sources; Dialogs are
translucent; ztest app was improved; Real Time Clock was updated + realtime variable was deleted; Fixed
sys_time () system call; System call sys_system () was improved and fixed - you are able to start new
user process in user apps; ICMPv6 code was updated; Added support for NDP's Router Advertisement - IPv6
address is automaticaly configured with site packets of e.g. radvd software; Added support for public IPv6
address communication into NDP protocol; Small correction in function net_proto_ipv6_print (); Added function
net_proto_ipv6_cmp_prefix () to compare IPv6 prefix with any next IPv6 address; Added GMM - initial Graphic
Memory Manager implementation - something like graphics renderer accelerator - graphics rendering is faster
then before (cca 60% performance boost); Updated libc functions time () and localtime_r (); Added ZDE app
zclock - digital clock