(#100) - Blobs: LevelDB support
(#100) - Blobs: LevelDB support

add support for blob attachments for LevelDB using buffers.

Dashed/pouchdb,tyler-johnson/pouchdb,seigel/pouchdb,pouchdb/pouchdb,TechnicalPursuit/pouchdb,asmiller/pouchdb,TechnicalPursuit/pouchdb,shimaore/pouchdb,willholley/pouchdb,janraasch/pouchdb,HospitalRun/pouchdb,mikeymckay/pouchdb,lakhansamani/pouchdb,Charlotteis/pouchdb,microlv/pouchdb,nickcolley/pouchdb,mikeal/pouchdb,KlausTrainer/pouchdb,mainerror/pouchdb,tohagan/pouchdb,p5150j/pouchdb,slaskis/pouchdb,mainerror/pouchdb,elkingtonmcb/pouchdb,johnofkorea/pouchdb,slang800/pouchdb,tohagan/pouchdb,bbenezech/pouchdb,janl/pouchdb,cesarmarinhorj/pouchdb,mikeymckay/pouchdb,mwksl/pouchdb,h4ki/pouchdb,garrensmith/pouchdb,seigel/pouchdb,slang800/pouchdb,callahanchris/pouchdb,mattbailey/pouchdb,Knowledge-OTP/pouchdb,Dashed/pouchdb,garrensmith/pouchdb,ramdhavepreetam/pouchdb,marcusandre/pouchdb,janl/pouchdb,cdaringe/pouchdb,cshum/pouchdb,colinskow/pouchdb,Actonate/pouchdb,elkingtonmcb/pouchdb,nicolasbrugneaux/pouchdb,h4ki/pouchdb,Knowledge-OTP/pouchdb,adamvert/pouchdb,microlv/pouchdb,optikfluffel/pouchdb,nicolasbrugneaux/pouchdb,nicolasbrugneaux/pouchdb,mattbailey/pouchdb,p5150j/pouchdb,callahanchris/pouchdb,greyhwndz/pouchdb,jhs/pouchdb,cesarmarinhorj/pouchdb,cshum/pouchdb,cesarmarinhorj/pouchdb,marcusandre/pouchdb,optikfluffel/pouchdb,spMatti/pouchdb,KlausTrainer/pouchdb,spMatti/pouchdb,johnofkorea/pouchdb,slang800/pouchdb,mwksl/pouchdb,jhs/pouchdb,Charlotteis/pouchdb,ramdhavepreetam/pouchdb,caolan/pouchdb,lukevanhorn/pouchdb,janl/pouchdb,asmiller/pouchdb,crissdev/pouchdb,cshum/pouchdb,patrickgrey/pouchdb,daleharvey/pouchdb,evidenceprime/pouchdb,lakhansamani/pouchdb,janraasch/pouchdb,greyhwndz/pouchdb,ntwcklng/pouchdb,mwksl/pouchdb,pouchdb/pouchdb,tyler-johnson/pouchdb,marcusandre/pouchdb,colinskow/pouchdb,KlausTrainer/pouchdb,cdaringe/pouchdb,microlv/pouchdb,adamvert/pouchdb,HospitalRun/pouchdb,pouchdb/pouchdb,slaskis/pouchdb,adamvert/pouchdb,crissdev/pouchdb,willholley/pouchdb,yaronyg/pouchdb,elkingtonmcb/pouchdb,cdaringe/pouchdb,asmiller/pouchdb,willholley/pouchdb,lukevanhorn/pouchdb,jhs/pouchdb,p5150j/pouchdb,seigel/pouchdb,Charlotteis/pouchdb,bbenezech/pouchdb,bbenezech/pouchdb,johnofkorea/pouchdb,yaronyg/pouchdb,callahanchris/pouchdb,ramdhavepreetam/pouchdb,optikfluffel/pouchdb,daleharvey/pouchdb,mainerror/pouchdb,h4ki/pouchdb,shimaore/pouchdb,tyler-johnson/pouchdb,patrickgrey/pouchdb,mattbailey/pouchdb,shimaore/pouchdb,mikeymckay/pouchdb,ntwcklng/pouchdb,ntwcklng/pouchdb,Actonate/pouchdb,tohagan/pouchdb,Actonate/pouchdb,lukevanhorn/pouchdb,daleharvey/pouchdb,garrensmith/pouchdb,slaskis/pouchdb,yaronyg/pouchdb,lakhansamani/pouchdb,Dashed/pouchdb,HospitalRun/pouchdb,colinskow/pouchdb,nickcolley/pouchdb,spMatti/pouchdb,janraasch/pouchdb,TechnicalPursuit/pouchdb,greyhwndz/pouchdb,patrickgrey/pouchdb,crissdev/pouchdb,Knowledge-OTP/pouchdb,nickcolley/pouchdb