Merge pull request #3347 from APriestman/3208_delayDbWrites

.../src/org/sleuthkit/autopsy/ingest/FileIngestPipeline.java

...beddedfileextractor/MSOfficeEmbeddedContentExtractor.java

...opsy/modules/embeddedfileextractor/SevenZipExtractor.java

...ryptiondetection/EncryptionDetectionFileIngestModule.java

...hkit/autopsy/modules/exif/ExifParserFileIngestModule.java

.../modules/fileextmismatch/FileExtMismatchIngestModule.java

...leuthkit/autopsy/modules/filetypeid/FileTypeDetector.java

...it/autopsy/modules/filetypeid/FileTypeIdIngestModule.java

...hkit/autopsy/modules/hashdatabase/HashDbIngestModule.java

...hkit/autopsy/keywordsearch/KeywordSearchIngestModule.java