* improve logging feature, add LevelPrint configuration for glog.Logger; add package internal/instance
* improve command build
* add default logger for panic message printing if no logger set
* up
* fix scheduler when timer triggers in less than one second for package gcron
* up
* develop-up: (38 commits)
revert gerror usage for package gvalid
unify error package to gerror
add CtxStrict feature for package gdb
rename constants of package gpage from skake to upper camel case
add context for intlog
improve Record/Result converting for package gdb
add context for intlog/gsession;improve struct/structs converting for package gconv
unify command or enviroment key names for packages
improve details for package glog
add file configuration support for logger in ghttp.Server
version updates
add more unit testing cases for package ghttp
add automatic fields mapping and filtering for Model.Where statements
improve Order feature for package gdb
improve function Increment/Decrement for package gdb
add auto fields filtering feature for function Scan of package gdb; mark funtcion Struct/Structs deprecated for gdb.Model
improve record converting for package gdb
improve transaction feature for package gdb
improve caller path filtering for package gdebug
improve caller path filtering for package gdebug
...
# Conflicts:
# os/glog/glog_logger.go
# os/glog/glog_logger_config.go
# os/glog/glog_logger_level.go
