Start adapting pexpect to use ptyprocess
Delegate more methods to ptyprocess
Add ptyprocess to Travis installation
Remove some long-dead code
Move code out of __init__
Refactor, creating SpawnBase class
Refactor, creating SpawnBaseUnicode class
Delegate sending control characters to ptyprocess
Record control characters in log files
Not all spawn classes have a kill method
Fix failure in str(spawnobj) before any output
Get version without importing pexpect
Merge pull request #123 from pexpect/use-ptyprocess

Start adapting pexpect to use ptyprocess