Use distinct output dir and input files variables in the Makefile - Fix

#72

Makefile

@@ -3,17 +3,20 @@ SHELL = /bin/bash
 NODE_BINDIR = ./node_modules/.bin
 export PATH := $(NODE_BINDIR):$(PATH)
 
+# Where to find input files (it can be multiple paths).
+INPUT_FILES = ./dev
+
 # Where to write the files generated by this makefile.
-OUTPUT_DIR = dev
+OUTPUT_DIR = ./dev
 
 # Available locales for the app.
 LOCALES = en_GB fr_FR it_IT
 
 # Name of the generated .po files for each available locale.
 LOCALE_FILES ?= $(patsubst %,$(OUTPUT_DIR)/locale/%/LC_MESSAGES/app.po,$(LOCALES))
 
-GETTEXT_HTML_SOURCES = $(shell find $(OUTPUT_DIR) -name '*.vue' -o -name '*.html' 2> /dev/null)
-GETTEXT_JS_SOURCES = $(shell find $(OUTPUT_DIR) -name '*.vue' -o -name '*.js')
+GETTEXT_HTML_SOURCES = $(shell find $(INPUT_FILES) -name '*.vue' -o -name '*.html' 2> /dev/null)
+GETTEXT_JS_SOURCES = $(shell find $(INPUT_FILES) -name '*.vue' -o -name '*.js')
 
 # Makefile Targets
 .PHONY: clean makemessages translations