Merge branch 'development'

Conflicts:
	src/main/webapp/admin/secure_shell.jsp

Updated version

Upgraded jetty to latest version (9.2.9.v20150224) due to JetLeak Vul…

…nerability: Remote Leakage of Shared Buffers in Jetty Web Server [CVE-2015-2080]. Also, updated google zxing.

v2.75.00

Updated to enforce strong passwords. Modified so SSH keys are generated by default when managing keys.  Users are forced to set a strong passphrase and download the private key.

Updated version

Swapped default manage keys page for "Full Access" users. Some cosmet…

…ic UI/text changes.

v2.73.00

Added ability for "Full Access" users to disable any user's public SSH key in order to force rotation. Disabling a key removes it from all host systems and additional SSH keys with the same fingerprint can no longer be set. Added fingerprint and key type. Updated project dependencies.

fixed spacing

v2.60.00

Modifed to allow users to add their own public SSH keys (closes bastillion-io#23).  Added task to refresh keys on systems based on interval defined in properties.  Modified to use a generic auth fail message. Fixed close buttons for dialogs on terminal screen. Updated project dependencies.

v2.50.02

Updated project dependencies. Fixed cosmetic issues.