Migrate to indicatif 0.7 beta

Now there is no need for the ugly hack where we drove the spinner
in a separate thread :)

Cargo.lock

@@ -162,9 +162,7 @@ dependencies = [
  "encode_unicode",
  "libc",
  "once_cell",
- "regex",
  "terminal_size",
- "unicode-width",
  "winapi",
 ]
 
@@ -359,9 +357,9 @@ checksum = "cb56e1aa765b4b4f3aadfab769793b7087bb03a4ea4920644a6d238e2df5b9ed"
 
 [[package]]
 name = "indicatif"
-version = "0.15.0"
+version = "0.17.0-beta.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7baab56125e25686df467fe470785512329883aab42696d661247aca2a2896e4"
+checksum = "500f7e5a63596852b9bf7583fe86f9ad08e0df9b4eb58d12e9729071cb4952ca"
 dependencies = [
  "console 0.15.0",
  "lazy_static",
@@ -457,9 +455,9 @@ dependencies = [
 
 [[package]]
 name = "number_prefix"
-version = "0.3.0"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "17b02fc0ff9a9e4b35b3342880f48e896ebf69f2967921fe8646bf5b7125956a"
+checksum = "830b246a0e5f20af87141b25c173cd1b609bd7779a4617d6ec582abaf90870f3"
 
 [[package]]
 name = "once_cell"