v5.0.0 - db/local saving strategy support

fixed a major bug that prevents playing from urls

code refinement - changed all bot substructure

code refinement - changed all bot substructure

code refinement - changed all bot substructure

Merge pull request #7 from Tzesh/versionControlandUpdateFix

a major bug that prevents vcs and update has been fixed v3.02 -> v3.03

Merge pull request #6 from Tzesh/onVoiceChannelLeaveDisconnectBug

On voice channel leave disconnect bug

Merge pull request #4 from Tzesh/JDA-v5.0.0-beta.6

Jda v5.0.0 beta.6

Update README.md

update to version 2.6