README.md: fixes
Examples: update Requires(post, postun)

Both %post and %postun needs lpbs, ignore failures. Fix
embarrasing bug
lpbs-approve: comments
Redirect also install output to buildlog
scripts/*: bugfixes, formatting
lpbs.spec: Add %pre Requires
msttcore-fonts.spec %define -> %global
lpbs-approve: fix zenity dimensions
GUI dialog for confirming RPM install
Add build GUI feedback
Add "build  completed" message (cli/(gui)
Add a new 'update' command

This is an interactive command which guides user through updating
all lpbs packages. Lot's of gui stuff added.
Refactoring install and update to separate files
approve: bugfixes
Add a new state not-approved

Old model implied problems when a package was in failed state
since it was not clear if it should go to approve-wait or
build-wait when rebuilt.