Added warning for wildcarded IMPORT CLASS statements and error for exact
match IMPORT CLASS statements.
Fixed problem with problem with compiling multiple DDL files and now
generate errors or warnings for missing class files or wildcarded
classpaths respectively.
LicenseCheck whitespace issues
Incorporated comments from John.
For ENG-6040, add @GC to sql command and web studio, run the gc call in a dedicated thread, return a result table with timing
Guard against invoking stopping or stopped twice
For ENG-6042, remove suspect optimization
Don't set stopped outside of safeStopped
For ENG-6040, fix broken TestClientInterface.testGC
Merge pull request #1228 from VoltDB/ENG-6042

For ENG-6042, remove suspect optimization
scans benchmark: change for new statistics format
csvbenchmark: update for new stats format
Merge pull request #1226 from VoltDB/flaky_piconetwork

Fix flaky piconetwork test (and network)
Merge pull request #1227 from VoltDB/ENG-6040

Eng 6040, add support for remotely invoked System.gc()
Merge pull request #1216 from VoltDB/ENG-5886-NoErrorForMissingImportClass

Eng 5886 no error for missing import class
Merge branch 'master' into ENG-6043
ENG-6043 improve snapshot messages serialization