Replace --show-redirects with --all and add --print-others, -P

With --all, any intermediary requests/responses are shown (such as redirects
 or the initial unauthorized Digest auth request).

 The --print-others, -P option works like --print, -p, but only applies to
 intermediary requests/responses. The default behaviour is to inherit
 the value of -p.

tests/test_redirects.py

@@ -3,16 +3,38 @@ from httpie import ExitStatus
 from utils import http, HTTP_OK
 
 
-def test_follow_no_show_redirects(httpbin):
+def test_follow_all_redirects_shown(httpbin):
+    r = http('--follow', '--all', httpbin.url + '/redirect/2')
+    assert r.count('HTTP/1.1') == 3
+    assert r.count('HTTP/1.1 302 FOUND', 2)
+    assert HTTP_OK in r
+
+
+def test_follow_without_all_redirects_hidden(httpbin):
     r = http('--follow', httpbin.url + '/redirect/2')
     assert r.count('HTTP/1.1') == 1
     assert HTTP_OK in r
 
 
-def test_follow_show_redirects(httpbin):
-    r = http('--follow', '--show-redirects', httpbin.url + '/redirect/2')
-    assert r.count('HTTP/1.1') == 3
-    assert r.count('HTTP/1.1 302 FOUND', 2)
+def test_follow_all_output_options_used_for_redirects(httpbin):
+    r = http('--check-status',
+             '--follow',
+             '--all',
+             '--print=H',
+             httpbin.url + '/redirect/2')
+    assert r.count('GET /') == 3
+    assert HTTP_OK not in r
+
+
+def test_follow_redirect_output_options(httpbin):
+    r = http('--check-status',
+             '--follow',
+             '--all',
+             '--print=h',
+             '--print-others=H',
+             httpbin.url + '/redirect/2')
+    assert r.count('GET /') == 2
+    assert 'HTTP/1.1 302 FOUND' not in r
     assert HTTP_OK in r