Set default output file name.
Load parameter from json file.
disasm fix
Load parameter of delays from json file.
Decode delay string.
Load file names can use regex.
Assemble apng file from json.
Implements wildcard.
Add test files.
Set current directory.
Move APNGAsm::savePNG to APNGFrame::save.
Add test files for xml.
Create SpecReader class.
Implements XmlSpecReader.
Add error check.
Use default delay if argument is illegal.
Move implement of method to cpp.
Merge remote-tracking branch 'origin/maxstepin-fixed-disasm' into xml

Conflicts:
	src/apngasm.cpp
Optimize include header.
Merge branch 'refactor'