Posh-Git before this release does not export `Write-VcsStatus` thus
powershell's autoloading cannot find the reqired module for the function.
note that `get-module -listAvailable` can return an array of multiple
versions.
Add a pre and post function hook around the Cmder prompt.
Specify the cmder prompt as a function that could be replaced by a user.
Write a friendly message when the user profile template is created.
Create the user profile with cmder prompt hooks ready to use.
It was concerning to run any function with a specific name every prompt
with no guarantee it remains what it was initally created as.
Core functions have been explicitly called from their
namespace like Microsoft.PowerShell.Utility\Write-Host to try and prevent
clobbering.
User supplied functions are passed in as script blocks, created as the
session runs the profile script. By creating them as constants these
function names cannot be declared again for the duration of the process.
Since the prompt function already exists by this time, set the readOnly
flag so to re-declare the prompt requires the use of -force.
It is hoped these changes limit what could be the risk of any script
redefining functions that are called automatically without user intent or
input.
There were problems when a path contained a parenthesis like `C:\temp\test (test)\`
As a precaution, quote all variables when they are used in echo or set.
This should prevent errors like
https://github.com/cmderdev/cmder/issues/935
https://github.com/cmderdev/cmder/issues/937
I've no idea why this happens, but it shouldn't hurt anyway...
The idea is:
* if the users points as to a specific git, use that
* test if a git is in path and if yes, use that
* last, use our vendored git
We don't make any attempt to guess a different location, if a user wants their
own git install, they have to choose "add git to path".
Also check that we have a recent enough version of git (e.g. test for
<GIT>\cmd\git.exe)
