Merge remote branch 'doherty/refactor-install-command' into develop

Conflicts:
	bin/perlbrew
	lib/App/perlbrew.pm

Changes

@@ -1,5 +1,5 @@
 - doherty++ FIX: stop when user specified an invalid perl version that cannot be found on cpan.
-- doherty++ specialized version installation: perlbrew install perl-blead
+- doherty++ specialized version installation: perlbrew install perl-blead / <URL>
 - am0c++ FIX: `perlbrew intsall /path/to/git/src/dir`
 
 0.19:

bin/perlbrew

@@ -63,12 +63,12 @@ from. Hit 'q' to cancel the selection.
 
 Build and install the given version of perl.
 
+You can give a URL to a tarball of a Perl release to install that.
+
 Versions of perl are specified as "perl-5.xx.x" for normal releases,
 "perl-5.xx.x-RCx" for release candidates, and "perl-blead" or just "blead" for
 the latest version from the git integration branch.
 
-You can also give a URL to a tarball of a Perl release to install that.
-
 =item B<install> /path/to/perl/git/checkout/dir
 
 Build and install from the given git checkout dir.