Quote $@ in razor.erb to avoid issue with tag matchers containing whitespace.

Problem:
Tag matchers containing whitespace would have everything after the whitespace removed when added using the /usr/bin/razor wrapper.  For example:

razor tag 1Og6DsvezhrTfz3Jm91TdE matcher add --key productname --compare equal --value 'PowerEdge R410'
Tag Matcher created:
 Key =>  productname
 Compare =>  equal
 Value =>  PowerEdge
 Inverse =>  false
 UUID =>  5nHnjhCLxaj0tOYCtZrVE

Note that " R410" is missing from the Value.

Solution:
Quote $@ in razor.erb, which is used to create /usr/bin/razor.  Per the bash man page:

@

Expands to the positional parameters, starting from one. When the expansion occurs within double quotes, each parameter expands to a separate word. That is, "$@" is equivalent to "$1" "$2" ...

I chose to quote $@ to resolve this issue with the minimum change to existing code.  Another solution would be to make /usr/bin/razor a symlink to /opt/razor/bin/razor.
Merge pull request #111 from jparsonssaffron/master

Quote $@ in templates/razor.erb to avoid whitespace issues