Logging key presses - prefix hex values with 0x
Allow key ids in keyboard.xml to be in any base
fixed: Curl should also retry on CURLE_COULDNT_CONNECT
fixed: Curl reconnect messages should be warnings
changed: Cosmetics
Use std::string not CStdString with strtol
Merge pull request #2149 from jhsrennie/allowhex

Allow key ids in keyboard.xml to be in hex
changed: No need to get FTP filetimes for Exists() calls
fixed: Don't check for local thumbs on Addon's path
Ignore duplicates due to add-ons with multiple extension points when retrieving the list of outdated add-ons