Forcing installation of platyPS if not found when building documentation

Author: JamesWTruher

appveyor.yml

@@ -58,4 +58,4 @@ test_script:
 
 # Upload the project along with test results as a zip archive
 on_finish:
-  - ps: Import-Module .\tools\appveyor.psm1; Invoke-AppveyorFinish
+  - ps: Import-Module "${env:BuildConfiguration}\tools\appveyor.psm1"; Invoke-AppveyorFinish

build.psm1

@@ -98,7 +98,9 @@ function Build-Documentation
     #if ( $null -eq (Get-Module -ListAvailable -FullyQualifiedName $modInfo))
     if ( $null -eq (Get-Module -ListAvailable platyPS))
     {
-        throw "Cannot find required minimum version $requiredVersionOfplatyPS of platyPS. Install via 'Install-Module platyPS'"
+        Write-Verbose -verbose "platyPS not found, installing"
+        Install-Module -Force -Name platyPS -Scope CurrentUser
+        # throw "Cannot find required minimum version $requiredVersionOfplatyPS of platyPS. Install via 'Install-Module platyPS'"
     }
     if (-not (Test-Path $markdownDocsPath))
     {