Change json tag
Fix a bug: slice bounds out of range
Fix a bug: slice bounds out of range
Add release validation
Delete creation task after processing successfully
Validate update request
Fix a bug: sort image before generating package
validate mode between dtim and request
Add some feature
1. Add some field in RadioRelease
2. Add separate file to control release related request
Add a new feature: log PV
	1. log PV by visitors' IP
	2. Just log count by now
Filter image in detail
Ignore illegal modification while parsing dtim
Add a filter in msa:
	compare msa's basename between dtim and DB record
optimize searching msa
Clear up code
	1. Extrace common method into father struct
	2. Clean up unused code
optimize dtim reader
disable function LogVisitor
disable function stat
enable stat
Change separator in image path
	& ==> @