Do not reload model after printer add

reload clears some attributes that are not actually nil
No need to call save after adding printer

It's implicit
puavo-web: test school information after change of printer permissions
Revert "puavo-web: test school information after change of printer permissions"

school.puavoAllowGuest and school.puavoAllowGuest are nil by default so
the th add_printer reload issue does not appear here. This is covered
with rspec now at least.

This reverts commit ea1a141dc12b0282d9105770d19e1724a5ccd35c.
rest: Don't be so strict about boot time testing

Can fail randomly on ci
rest: document Gemfile.shared
Revert "Revert "puavo-web: test school information after change of printer permissions""

This reverts commit 35c036025f1b46b91c777814a824a158fdb8bc92.
puavo-web: remove useless configuration
puavo-web: fix attribute name
puavo-web: change school configurations for test
rest: Support msgpack in fluent relay
Add resque gem and skeleton worker
Add UserMassImport worker
puavo-web: add device model to list of devices
rest: Log request durations
Merge branch 'master' of github.com:opinsys/puavo-users
rest: Add very simple profiling for ldap searches
rest: Add colorize and update lock file
rest: Use timer in profiling
rest: Count total time for LDAP queries