SUSI crashing due to PocketSphinx in offline mode #525

Describe the bug

SUSI crashing due to PocketSphinx in offline mode.

To Reproduce

Steps to reproduce the behavior:

1. Switch to offline mode
2. SUSI will switch to PocketSphinx
3. See error

Expected behavior

Renaming the directory files used in the code

Screenshots

If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: [e.g. Windows 10, Ubuntu 18.10]
• Browser [e.g. Chrome, Safari]
• Version [e.g. 22]

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, Safari]
• Version [e.g. 22]

Additional context

Error log

Error: missing PocketSphinx language data directory: "/usr/local/lib/python3.6/dist-packages/speech_recognition/pocketsphinx-data/en_US" Internet Connection not available

@himanshupathak21061998 , you can take a look here.