rename epictest -> integrationtest

decide whether to perform GC -- with flag

fix nil pointer panic on version strings in ID message

fuse/ipfs: seeking

This commit changed the "ReadAll" to do proper read requests.
Seeking in fuse mounted fs now works. Note: this is why opening a
mounted video didnt work... we just didnt look at this code in
months.

implement path type

return connected peers as providers

dialing 4000 connections somehow keeps choking both travis and
jenkins. dialing this down to 500

http://gateway.ipfs.io/ipfs/QmfUFkQuqjfQzLNhMLwiibiAxnAaZEJAbYkey9orXJ4aQe/3lcat.jpg

add more help text for ipfs diag net

Gateway Changes

cc @mappum

core/corehttp: gateway_handler: Redirect to path with trailing slash when showing a directory's index.html

- attempts set to 1 now.
- timeouts must account for that.

fuse: no longer require fuse to compile ipfs