"bundle uninstall" of any version disables enabled bundle of same type

[Matt Titmus]

Uninstalling a bundle of one type (such as "test") disables all versions of that bundle.

$ go run . bundle list -v                        
BUNDLE   ENABLED   INSTALLED VERSIONS    
gort     0.0.1     0.0.1                 
test     0.0.2     0.0.1, 0.0.2, 0.0.3

$ go run . bundle uninstall test 0.0.3
Bundle test 0.0.3 uninstalled.

$go run . bundle list -v             
BUNDLE   ENABLED   INSTALLED VERSIONS   
gort     0.0.1     0.0.1                
test     -         0.0.1, 0.0.2 

$ go run . bundle info test
Name: test
Versions: 0.0.1, 0.0.2
Status: Disabled