[fix install.sh] terminal output more concise
[fix install.sh] terminal output more concise

- Changed terminal output to be more concise
- Fix some issues to fedora installation ( it was missing `sudo` ).
- Supports fedora 21 ( just worked )

agendor/azk,nuxlli/azk,slobo/azk,marcusgadbem/azk,teodor-pripoae/azk,juniorribeiro/azk,gullitmiranda/azk,renanmpimentel/azk,agendor/azk,juniorribeiro/azk,azukiapp/azk,gullitmiranda/azk,fearenales/azk,saitodisse/azk,nuxlli/azk,marcusgadbem/azk,renanmpimentel/azk,fearenales/azk,Klaudit/azk,azukiapp/azk,saitodisse/azk,teodor-pripoae/azk,Klaudit/azk,slobo/azk,heitortsergent/azk,heitortsergent/azk