Remove unbound variable warnings

Remove unbound variable warnings that were resolved at runtime
Disabling autocomplete in string and comment contexts
Update sample library UI.
Merge branch 'master' of https://github.com/DynamoDS/Dynamo into contextualCompletion
resolved merge conflicts
address review comments
Added tests for code completion context parsers
Add AppVersion field
Do not use the Dynamo property sheet.
Copy references into local extern and link.
Resolve conflicts
Merge branch 'master' of https://github.com/DynamoDS/Dynamo into contextualCompletion
addressed review comments
Adjust to use accurate build number rather than version number
Remove a checking condition
 Update test case
Merge branch 'master' into fix_magn5353
Merge branch 'master' of https://github.com/DynamoDS/Dynamo into fixwarnings
Code refactor

1. List->Hashset
2. Rename symbol to be more descriptive
Merge branch 'master' into fix_magn5353