Description of problem:

When user enters a URL for New Compute resource but accidentally has whitespace before it (perhaps from copy/paste), user is told it is not parsed, and/but this isn't clear in the error message.

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1. Attempt to create a new Compute resource; enter a URL that has a preceding space, i.e., " qemu+tcp://localhost:16509/system"
2. Submit; view error message.

Actual results:
User gets message like:

Unable to save
Error making a connection to libvirt URI qemu+tcp://localhost:16509/system: Call to virConnectOpen failed: internal error Unable to parse URI qemu+tcp://localhost:16509/system


As such, user cannot see that there is actually extra whitespace there.

Expected results:

Honestly, I'd like to see any excess whitespace getting removed and the input validated.  However, failing that, maybe we should put quotes or something around the invalid data so user might see it:
Unable to save
Error making a connection to libvirt URI qemu+tcp://localhost:16509/system: Call to virConnectOpen failed: internal error Unable to parse URI 
" qemu+tcp://localhost:16509/system"

OR

Just note that values cannot have preceeding (or tailing) whitespaces.

Additional info:

* apr-util-ldap-1.3.9-3.el6_0.1.x86_64
* candlepin-0.8.9-1.el6_4.noarch
* candlepin-scl-1-5.el6_4.noarch
* candlepin-scl-quartz-2.1.5-5.el6_4.noarch
* candlepin-scl-rhino-1.7R3-1.el6_4.noarch
* candlepin-scl-runtime-1-5.el6_4.noarch
* candlepin-selinux-0.8.9-1.el6_4.noarch
* candlepin-tomcat6-0.8.9-1.el6_4.noarch
* elasticsearch-0.19.9-8.el6sat.noarch
* foreman-1.1.10004-1.noarch
* foreman-compute-1.1.10004-1.noarch
* foreman-installer-puppet-concat-0-2.d776701.git.0.21ef926.el6sat.noarch
* foreman-installer-puppet-dhcp-0-5.3a4a13c.el6sat.noarch
* foreman-installer-puppet-dns-0-7.fcae203.el6sat.noarch
* foreman-installer-puppet-foreman-0-6.568c5c4.el6sat.noarch
* foreman-installer-puppet-foreman_proxy-0-8.bd1e35d.el6sat.noarch
* foreman-installer-puppet-puppet-0-3.ab46748.el6sat.noarch
* foreman-installer-puppet-tftp-0-5.ea6c5e5.el6sat.noarch
* foreman-installer-puppet-xinetd-0-50a267b8.git.0.44aca6a.el6sat.noarch
* foreman-libvirt-1.1.10004-1.noarch
* foreman-postgresql-1.1.10004-1.noarch
* foreman-proxy-1.1.10003-1.el6sat.noarch
* foreman-proxy-installer-1.0.1-8.f5ae2cd.el6sat.noarch
* katello-1.4.2-10.el6sat.noarch
* katello-all-1.4.2-10.el6sat.noarch
* katello-candlepin-cert-key-pair-1.0-1.noarch
* katello-certs-tools-1.4.2-2.el6sat.noarch
* katello-cli-1.4.2-7.el6sat.noarch
* katello-cli-common-1.4.2-7.el6sat.noarch
* katello-common-1.4.2-10.el6sat.noarch
* katello-configure-1.4.3-14.el6sat.noarch
* katello-configure-foreman-1.4.3-14.el6sat.noarch
* katello-foreman-all-1.4.2-10.el6sat.noarch
* katello-glue-candlepin-1.4.2-10.el6sat.noarch
* katello-glue-elasticsearch-1.4.2-10.el6sat.noarch
* katello-glue-pulp-1.4.2-10.el6sat.noarch
* katello-qpid-broker-key-pair-1.0-1.noarch
* katello-qpid-client-key-pair-1.0-1.noarch
* katello-selinux-1.4.3-3.el6sat.noarch
* openldap-2.4.23-31.el6.x86_64
* openldap-devel-2.4.23-31.el6.x86_64
* pulp-rpm-plugins-2.1.1-1.el6sat.noarch
* pulp-selinux-2.1.1-1.el6sat.noarch
* pulp-server-2.1.1-1.el6sat.noarch
* python-ldap-2.3.10-1.el6.x86_64
* ruby193-rubygem-ldap_fluff-0.2.2-1.el6sat.noarch
* ruby193-rubygem-net-ldap-0.3.1-2.el6sat.noarch
* signo-0.0.16-1.el6sat.noarch
* signo-katello-0.0.16-1.el6sat.noarch