Initial version of Find All References
Merge branch 'master'
FindReferencesFilter searches solution-wide
make Find references async
Highlight symbol text and tweak icon handling
Merge pull request #1 from vasily-kirichenko/find-all-references

FindReferencesFilter searches solution-wide
Merge branch 'find-all-references' of https://github.com/dungpa/PowerTools into find-all-references
Final touch
FindReferenceFilter searches all over the solution for externally declared symbol usages
Merge pull request #2 from vasily-kirichenko/find-external-symbol-references

FindReferenceFilter searches all over the solution for externally declared symbol usages
Fix the bug with highlighting incorrect ranges
Windows shouldn't be prematurely opened
Merge pull request #350 from dungpa/find-all-references

Add Find all references
Merge remote-tracking branch 'upstream/master'