v3.00 - Major set of New features & Enhancements

• arp-scan config options: interface, several subnets. #101 #15
• Next/previos button while editing devices #66 #37
• Internet presence/sessions monitoring #63
• Logical delete / archive / hide Device #93
• Flag to mark device with random MAC's #87
• New Device Types predefined in combobox #92
• Ask before leave the page with unsaved changes #104
• Option to don't mark devices as new during installation #94
• Uninstall script #62
• Fixed: Error updating name of devices w/o IP #97
• Fixed: Deleted devices reappear #84
• Fixed: Device running Pi.Alert must be marked as "on-line" #76
• Fixed: Incorrect calculation of presence hours #102
• Fixed: Problem redirect to homepage clicking in logo #103