print progress when installing torch

add PIP_INSTALLER_LOCATION env var to install pip if it's not installed
remove accidental call to accelerate when venv is disabled
add another env var to skip venv - SKIP_VENV

webui.bat

@@ -3,6 +3,7 @@
 if not defined PYTHON (set PYTHON=python)
 if not defined VENV_DIR (set "VENV_DIR=%~dp0%venv")
 
+
 set ERROR_REPORTING=FALSE
 
 mkdir tmp 2>NUL
@@ -14,6 +15,7 @@ goto :show_stdout_stderr
 
 :start_venv
 if ["%VENV_DIR%"] == ["-"] goto :skip_venv
+if ["%SKIP_VENV%"] == ["1"] goto :skip_venv
 
 dir "%VENV_DIR%\Scripts\Python.exe" >tmp/stdout.txt 2>tmp/stderr.txt
 if %ERRORLEVEL% == 0 goto :activate_venv
@@ -28,13 +30,13 @@ goto :show_stdout_stderr
 :activate_venv
 set PYTHON="%VENV_DIR%\Scripts\Python.exe"
 echo venv %PYTHON%
+
+:skip_venv
 if [%ACCELERATE%] == ["True"] goto :accelerate
 goto :launch
 
-:skip_venv
-
 :accelerate
-echo "Checking for accelerate"
+echo Checking for accelerate
 set ACCELERATE="%VENV_DIR%\Scripts\accelerate.exe"
 if EXIST %ACCELERATE% goto :accelerate_launch