fixes #1871

this patch is rebased from 1.0 to 1.2.
original patch created by rvrignaud
fixes #1871 typo in java script
fixes #1871 - removing duplicate dropdown box
fixes 1871 - removing empty params from security group multiselect list
removing .project file
fixed #1871

moved managed_ip to fog_extentions/aws/server
security groups and VPC are displayed by name where possible instead of by amazon id
moved code from _ec2 form into a helper
fixes #1871

reverting provided_attributes to take the host out of it
fixes #1871

updating the initial load of the security group list, so that names are
displayed instead of the amazon ids on first load of virtual machine page