convert: fix specialization for QString
slap: add noexcept
slap: add insert functions for bool and other types
slap: mark values as const
Move files from include to root
Move files from lib to root
convert: fix #include
flags: initial version
Add common

The original common (in common dir) is being broken up and replaced by
smaller files in the root dir.
convert: add oct and hex functions

Add template alias for int types.
stream: simplify

Replace stream class with << operator for strings.
common: replace prog_name with program(), add version()
common: simplify

And make action actually work.
option: update

Make options be a class and store options as a map instead of vector.
Add message

This was split off from original common.
Remove common/common

It's being replaced by a number of separate smaller files.
Add file

This is an updated version of the original file class.
file: disallow copying
file: add default move ctor
except: system_exception: use generic_category()

system_category() is for errors that are not in errc.