Set-ZLocation and Update-ZLocation break for PS 7 if the user has defined an alias for 'find'

[astenlund]

A user-defined find alias seems to override the Find function in ZLocation.LiteDB.psm1, unless the alias is defined with the Private option (just a theory though).

Steps to reproduce:

1. Add Set-Alias find Get-Item -Option None to your PS 7 profile
2. Open PS 7 and run some commands
3. Run Invoke-ZLocation and notice that none of the weights have been updated
4. Remove the alias and reload PS
5. Everything now works

Another note: if the find alias is created with the Private option, the alias stays in user scope and does not affect the function of ZLocation.

[roachsinai]

Same issue. Does add a zfind alias for ZLocation is a good try?