* linux/getmangos.sh: default to build client tools
The client tools are needed to extract game data and should be
built in a default installation.
* Update getmangos.sh
- Adding support when several WoW clients path are detected. Only the first one is selected
- Adding support for database updates. Only last folder (alphabetically sorted) will be takenxw
- Ubuntu "precise" 12.04 LTS
- Ubuntu "trusty" 14.04 LTS
- Ubuntu "xenial" 16.04 LTS
- Ubuntu "yakkety" 16.10
- Debian "jessie" 8.0
- Debian "stretch" next
- Linux Mint "maya" 13
- Linux Mint "qiana" 17
- Linux Mint "rebecca" 17.1
- Linux Mint "rafaela" 17.2
- Linux Mint "rosa" 17.3
- Linux Mint "sarah" 18
- LMDE "betsy" 2