1.1.0

Fixes for various POSIX conformance issues:

• Fix current address after moving a single line: 7f85285
• Fix discarding of addresses for commands expecting a single address: 66979c7
• Fix incorrect line number calculation during multi-line substitutions: b861a13

Improved performance of various text editor operations:

• Rewrote (edward buffer) to use an SRFI 214 flexvector internally: 72084b8
• Added a benchmark suite: 675dd1a
• Significantly improved performance of the write command: 0eea82e

Various changes to the edward library, including some backwards incompatible ones:

• The lines->string procedure has been removed in favor of a newly added lines->port procedure: 747b440
• The buffer->list procedure can now return a sublist: 2483e32
• A buffer-ref procedure was added to (edward buffer): db21875
• The sublist procedure was removed from (edward util): 7cf601c
• The for-each-index procedure has been removed from (edward util): 912c137