Bugfix release

Just a small update to give a version number to the small improvements that have been added over the last month.

Bugfixes:

• UI no longer deadlocks from repeated clicking of step or run button (#42). Credit to @BenjaminBeichler for finding this
• @rmnattas added some the missing jal t0 and jalr t0 psuedo-ops (#43)

Other improvements:

• GCC compatability has improved through the addition of %hi and %lo and new directives (#16)
• Support for UTF-8 in string related system calls was finished (#28)