Adding Android certificate installer.
Revert "Adding Android certificate installer."

This reverts commit 165db39830bae20e2a304fb1eaa337dde21b0e68.
Adding Android certificate installer.
Revert "Adding Android certificate installer."

This reverts commit 8c480dceeeee6aa7395284db860c07f47a503622.
Adding Android certificate installer
fixed android cert installer
fixed android cert installer
Adding device property checks
Command line certificate installer
Removed subprocess commands with shell=True
Remove the temporary certificate file
os remove
Merge pull request #17 from maryruthven/cert_installer

Add Android certificat installer.