v0.3.0

This version changes the Windows builds to 64-bit to support larger dictfiles and reduce virus scanner false positives, clarifies the documentation, adds an option to hide the source footer added by Nickel with certain locales, refactors the internal Marisa bindings, and makes some small improvements to the code.

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099f354 all: Fixed releases
6c333b4 all: Switched windows builds to 64-bit
e442434 docs: Added links to pre-built dictionaries to the main header
50aa051 docs: Clarified the current situation with read-only dictionaries (#6)
939235f cmd/dictgen: Added option to prevent the footer from showing on certain locales (fixes #5)
8ef75c2 dictgen: Added PostRawHTML option to DictFileEntry
10e0680 all: Added integration tests for overall dictzip-related functionality
1a820d5 examples/webster1913-convert: Fixed false positives for headwords
dae2dd1 marisa: Fixed reading large tries, added debug env var
5bfa4c5 marisa: Finished with the last bit of cleanup
0239665 all: Make marisa optional for building kobodict
fdc6c66 marisa: Fixed a few subtle errors and simplified the stream shim
018a9ae docs: Updated links
a84722e docs: Added documentation for examples/bgl-convert
f490dfc examples/bgl-convert: Added new tool to convert Babylon BGL dictionaries
1a80ab6 marisa: Cleaned up everything
0b4392a marisa: Cleaned up imports
65ab5e6 all: Added Travis builds for testing on macOS
bbb361d marisa: Added support for directly using io.Reader/io.Writer
3930b08 all: Removed SWIG from AppVeyor builds
338b88a marisa: Fixed tests on non-amd64 architectures
c91db49 marisa: Rewrote wrapper to run completely in-memory and not depend on SWIG
3c56b2e kobodict: Abstracted marisa-trie bindings into an interface
61364e6 all: Checked built-in dictionaries against 4.20.14622
bca4c53 examples/webster1913-convert: Handle synonyms starting after the example of a numbered definition
0b8179b cmd/dictutil: Fixed missing newline in fmt.Printf