Merge pull request #117 from v2m/master

fix for #102: [Navigate to] searching for operators brings no results
copy LanguageService and Parser from FSharpBinding
finish synchronizing LanguageService with FSharpBinding
Rename refactoring finds symbol usages project-wide
update FCS to 0.0.30
Merge pull request #119 from vasily-kirichenko/update-FCS-0.0.30

update FCS to 0.0.30
General cleanup and reorganization
Remove the use of Package.GetGlobalService

Use fields instead of properties where possible
Add an option to disable NavigateTo feature
Merge pull request #118 from vasily-kirichenko/update-language-service

Update language service
Merge remote-tracking branch 'dungpa/option-to-disable' into fsprojects_master

Conflicts:
	src/FSharpVSPowerTools.Core/FSharpVSPowerTools.Core.fsproj
Rename refactoring does not find usages of the symbol before the dialog is closed with OK result
fix: Rename dialog shows an error if canceled
Rename refactoring checks if the symbol is in the current project before opening the dialog
Merge pull request #129 from vasily-kirichenko/optimize-rename-dialog

Rename refactoring does not find usages of the symbol before the dialog is closed with OK result
Fix #128, #130 - move to FCS 0.0.31 and add private symbol check
Merge pull request #131 from dsyme/fix128-130

Fix #128, #130