v0.30.1

• Add the ability to import JSON keystore files (Thanks to https://github.com/shawntabrizi)
• Updated to derivation documentation (Thanks to https://github.com/EthWorks)
• Rework account creation with top-level menu
• Allow accounts to be hidden, i.e. not injected (per account setting)
• Adjust allowed mnemonic seed strengths, 12, 15, 18, 21 & 24 all allowed
• Allow accounts to be tied to a specific network genesis (along with display)
• Allow accounts to be made hidden, i.e. not injected into dapps
• Remove duplication with Default/Substrate prefixes in dropdown (equivalent, only generic displayed)
• Display child accounts when no parent has been found (orphans)
• Display derived suri alongside parent account names
• Remove all bundled metadata, update is available for dapps to keep current
• Sorting of injected accounts based on created timestamp