Merge pull request #19 from a4lg/robust-docker-detection

Detect Docker robustly

Makefile

@@ -41,7 +41,7 @@ all: build
 
 build: 
  @echo "Checking if Docker is available..."
- @if command -v docker &> /dev/null ; then \
+ @if command -v docker >/dev/null 2>&1 ; then \
  echo "Docker is available, building inside Docker container..."; \
  $(MAKE) build-container; \
  else \