add .editorconfig and fix code formatting

.editorconfig

@@ -0,0 +1,18 @@
+# http://editorconfig.org
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_size = 4
+indent_style = tab
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[apkbuild-gem-resolver.in]
+indent_size = 2
+indent_style = space
+
+[apkbuild-pypi.in]
+indent_size = 4
+indent_style = space

abump.in

@@ -136,4 +136,3 @@ fi
 abuild_opts="$recursive $keep"
 
 do_bump "$@"
-

apkgrel.in

@@ -136,4 +136,3 @@ IFS=$oldifs
 
 do_verify "$@" || exit 1
 $cmd "$@"
-

newapkbuild.in

@@ -329,4 +329,3 @@ while [ $# -gt 0 ]; do
 	newaport $1 || exit 1
 	shift
 done
-