README: update download link to 0.3.8
ASN1: fix issue with non-constructed context-specific tags
ASN1: add unit test for non-constructed context-specific change
ASN1: fix unit test
Merge pull request #480 from terrafrost/asn1-fix

ASN1: fix issue with non-constructed context-specific tags

* terrafrost/asn1-fix:
  ASN1: fix unit test
  ASN1: add unit test for non-constructed context-specific change
  ASN1: fix issue with non-constructed context-specific tags
BigInteger: accomodate GMP change in PHP 5.6
Merge pull request #482 from terrafrost/gmp-56

BigInteger: accommodate GMP change in PHP 5.6

* terrafrost/gmp-56:
  BigInteger: accomodate GMP change in PHP 5.6
SSH2: removed redundant rtrim
Merge pull request #483 from cezarykluczynski/ssh2-rtrim-strip

SSH2: removed redundant rtrim

* cezarykluczynski/ssh2-rtrim-strip:
  SSH2: removed redundant rtrim
Fix Net_SFTP::filetype() block device recognition.
Merge pull request #486 from vvolodko/patch-1

Fix Net_SFTP::filetype() block device recognition.

* vvolodko/patch-1:
  Fix Net_SFTP::filetype() block device recognition.
Correct constant: NET_SFTP_BLOCK_DEVICE -> NET_SFTP_TYPE_BLOCK_DEVICE
Merge pull request #487 from bantu/fix-486

Correct constant: NET_SFTP_BLOCK_DEVICE -> NET_SFTP_TYPE_BLOCK_DEVICE

* bantu/fix-486:
  Correct constant: NET_SFTP_BLOCK_DEVICE -> NET_SFTP_TYPE_BLOCK_DEVICE
Merge pull request #4 from phpseclib/master

Update from origin