Removes preview flag

Fixes #10 vscode/#11485 makes gitlens unusable with whitespace rendering
Fixes #11 Not showing details of commits
Fixes #12 command 'gitlens.XXX' not found
Fixes #13 Handle exception when you open a file that does not exist in a git repository
Fixes #14 Remove logs from production build

Rewrites blame annotation controller and provider - fixes whitespace issues, reduces overhead, and provides better performance
Rewrites status bar blame support - reduces overhead and provides better performance
Adds showFileHistory command to status bar
Renames showHistory to showFileHistory
Fixes log to use iso 8601 for dates

Adds showHistory command support to CodeLens
Fixes and improve the showHistory explorer
Refactoring

Adds output channel logging, controlled by the `gitlens.advanced.output.level` setting
Removes all debug logging, unless the `gitlens.advanced.output.debug` settings it on

Refactored commands and blame annotations

Adds better uncommitted hover message in blame annotations

Add new StatusBar settings -- see **Extension Settings** above for details
Renames the `gitlens.codeLens.recentChange.command` & `gitlens.codeLens.authors.command` settings options (to align with command names)
Adds new `gitlens.diffWithPrevious` option to the `gitlens.codeLens.recentChange.command` & `gitlens.codeLens.authors.command` settings
Fixes Diff with Previous when the selection is uncommited
Removes `gitlens.blame.annotation.useCodeActions` setting and behavior

Adds new command to toggle CodeLens on and off when `gitlens.codeLens.visibility` is set to `ondemand`

Adds new blame annotation styles (compact & expanded)
Cleaned up blame annotations
Fixes issue with invalid repoPath on first start

Automatically turns off blame only when required now

Removes CodeLens from fields and single-line properties to reduce visual noise

Adds diff menu commands always
Attempts to move the diff file to the correct line number
Fixes code action provider -- works again
Deletes deprecated code

Reworked Uri scheme to drastically reduce encoded data (big perf improvement)