applied shellcheck fixes (use mapfile, use command grep/sed to avoid (rare) case of command being aliased, minimize shell invocation, don't read profile/maven file needlessly, ...)

Author: glhez

.editorconfig

@@ -0,0 +1,12 @@
+root=true
+
+[*.{bash,java,cpp,py,xml}]
+charset = utf-8
+indent_style = space
+indent_size = 2
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.bash]
+end_of_line = lf
+