SCP: add support for file names with spaces
SCP: always encapsulate filenames within double quotes
Merge pull request #394 from terrafrost/scp-spaces

SCP: add support for file names with spaces

* terrafrost/scp-spaces:
  SCP: always encapsulate filenames within double quotes
  SCP: add support for file names with spaces
Merge branch 'master' into php5

* master:
  SCP: always encapsulate filenames within double quotes
  SCP: add support for file names with spaces