Next Release - Date TBD

TODO: SRFI 113 TODO: performance improvements, but those might come in version after the next

Features:

Added the following libraries from R7RS-large red edition (data structures):
- SRFI 1 list library
- SRFI 133 vector library
- SRFI 111 boxes
- SRFI 117 mutable queues
- SRFI 132 sorting library
Added SRFI 2, and-let*
Added parameterize from section 4.2.6 of R7RS to the (scheme base) library.
Added let-values and let*-values to (scheme base).
Added string ports to (scheme base) - open-input-string, open-output-string, and get-output-string.
Added bytevector ports to (scheme base) - get-output-bytevector, open-input-bytevector, and open-output-bytevector.
Modified the makefile to also search current working directories for headers and libraries.

Bug Fixes:

Thanks to Mark Meyer, identified and fixed several segfaults in write and display.
Updated write to display escaped character sequences (EG: \t) instead of literal characters.
Prevent C compilation errors when building a program that only contains basic primitives or a constant at the top level.
Fixed the compiler to allow application of a function that can take any number of arguments. For example:
```
   ((lambda test (write test)) 1 2 3 4)
```
Updated eval to handle functions that take an optional number of arguments.
Updated number->string to omit leading zeros for binary conversions.
Fixed apply to use the proper semantics when receiving more than one data argument.
Changed the assoc and member functions to accept an optional comparison function, and modified both families of functions to be native Scheme functions instead of C primitives.
Allow libraries to contain multiple import, begin, and export sections.