Deprecated warning message for properties

[Rangababu-R]

resolves #319

resolves #272
resolves #274
resolves #276
resolves #277
resolves #273
resolves #221

This includes py_go_diff PR too

[lgtm-com]

This pull request introduces 1 alert when merging f801d0c into 261ef08 - view on LGTM.com

new alerts:

• 1 for Unused import

[lgtm-com]

This pull request introduces 1 alert when merging 5a0f4de into 261ef08 - view on LGTM.com

new alerts:

• 1 for Unused import

[lgtm-com]

This pull request introduces 3 alerts when merging 8fef9d4 into 261ef08 - view on LGTM.com

new alerts:

• 2 for Unused import
• 1 for Module is imported more than once

[lgtm-com]

This pull request introduces 4 alerts when merging 44ca7a5 into 261ef08 - view on LGTM.com

new alerts:

• 3 for Unused import
• 1 for Module is imported more than once

[lgtm-com]

This pull request introduces 4 alerts when merging 21e8973 into 261ef08 - view on LGTM.com

new alerts:

• 3 for Unused import
• 1 for Module is imported more than once

[lgtm-com]

This pull request introduces 4 alerts when merging 97b3da9 into 261ef08 - view on LGTM.com

new alerts:

• 3 for Unused import
• 1 for Module is imported more than once

[lgtm-com]

This pull request introduces 4 alerts when merging d68c17e into 261ef08 - view on LGTM.com

new alerts:

• 3 for Unused import
• 1 for Module is imported more than once

[lgtm-com]

This pull request introduces 4 alerts when merging ceaab2e into 261ef08 - view on LGTM.com

new alerts:

• 3 for Unused import
• 1 for Module is imported more than once

[lgtm-com]

This pull request introduces 4 alerts when merging ca5c4d0 into f574af0 - view on LGTM.com

new alerts:

• 3 for Unused import
• 1 for Module is imported more than once

[lgtm-com]

This pull request introduces 4 alerts when merging 13ec947 into f574af0 - view on LGTM.com

new alerts:

• 3 for Unused import
• 1 for Module is imported more than once

[Rangababu-R]

Closing this PR as it is split to 4 PRs, #337 #338 #339 #340