Bump SONAME as discussed in JuliaMath#200

Merge pull request JuliaMath#130 from ginggs/enable-optimization-again

Enable optimization again for *int.c and *intf.c

Merge pull request JuliaMath#162 from JuliaLang/aa/0.5.5

Bump version to 0.5.5

Merge pull request JuliaMath#146 from twadleigh/dll-a-for-windows

Version bump for Makefile change.

Bump version for Makefile change.

BUMP VERSION

Bump VERSION

Merge pull request JuliaMath#126 from JuliaLang/nl/includes2

More header fixes

Merge pull request JuliaMath#68 from talex5/type_includes

[RFC] Don't use sys/types.h

Merge pull request JuliaMath#65 from nalimilan/soversion

Separate SOVERSION from release version