feature #2468: use VERSION in onehost sync

* Only updates hosts with VERSION value < $REMOTES/VERSION
* Adds VERSION to the host when the update is correct

(cherry picked from commit 826c558941bc58674fbbe9a89908340743bf5c92)
feature #2468: add probe to get remotes version

(cherry picked from commit 1078fea78826814ad45b2961c11e21f08a3b3160)
feature #2468: add --force option to onehost sync

Also prints the hosts selected for upgrade

(cherry picked from commit 0257d5bd7b2e0dc4c78f409db8fdf4eb5d27967f)
feature #2468: Use only one queue for onehost sync

Also prints the percentage of hosts updated

(cherry picked from commit b62925196f3669a97fbe6b3a9daab6fcbbb3b3ec)
feature #2468: add rsync option to onehost sync

(cherry picked from commit 81b045de86cbdfa0019fbcc50c56541bbd068fd8)
feature #2468: fix bug getting probes version

(cherry picked from commit b49454a7f8b10822924398689a2d3ed8c33ea244)
Fix error when creating a new template as a regular user

(cherry picked from commit 4eb339d5d7cdccdd68937238020aedc25be832ad)
Update languages

(cherry picked from commit 5a8eb832631eb2dc22499e2169f8818a959ebd3d)
Feature #2505: Possibility to customize the Sunstone display name

(cherry picked from commit e4bc95e559feb8dea555ec193d7c9b5325671b00)
Bump to version 4.4.0
Update man pages
feature #2500: option to encode credentials in sunstone

(cherry picked from commit 8b71eb6a2973ef9bd8685c8fe6619f4cb878166d)
Bug #678: Startup should create dir for pid file if it does not exists

(cherry picked from commit e0c813b59138aea45d44739d00abda7a9dc83abe)
Fix novnc rendering when the window is detached

(cherry picked from commit 4a505d22636913126ee589777dc5b88ff22e376d)
Fix typo in migrator upgrade (4.2.0 -> 4.3.80)

(cherry picked from commit b0290d7a20e280115025c2572111c011978d9363)