fix some build issues

[snecklifter]

I have no idea if this project is dead but it seems some build issues need fixing so this is my first pass at doing so.

[snecklifter]

An attempt to fix basic issues in #76

[coveralls]

Pull Request Test Coverage Report for Build 132

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 26 unchanged lines in 11 files lost coverage.
• Overall coverage decreased (-0.008%) to 58.793%

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Files with Coverage Reduction	New Missed Lines	%
jlatexmath/src/main/java/org/scilab/forge/jlatexmath/AccentedAtom.java	1	62.82%
jlatexmath/src/main/java/org/scilab/forge/jlatexmath/BigOperatorAtom.java	1	86.21%
jlatexmath/src/main/java/org/scilab/forge/jlatexmath/ScriptsAtom.java	1	91.35%
jlatexmath/src/main/java/org/scilab/forge/jlatexmath/TeXIcon.java	1	69.12%
jlatexmath/src/main/java/org/scilab/forge/jlatexmath/VCenteredAtom.java	1	0%
jlatexmath/src/main/java/org/scilab/forge/jlatexmath/OverUnderBox.java	2	0%
jlatexmath/src/main/java/org/scilab/forge/jlatexmath/TeXParser.java	2	54.71%
jlatexmath/src/main/java/org/scilab/forge/jlatexmath/URLAlphabetRegistration.java	2	0%
jlatexmath-fop/src/main/java/org/scilab/forge/jlatexmath/fop/JLaTeXMathXMLHandler.java	4	0%
jlatexmath/src/main/java/org/scilab/forge/jlatexmath/DefaultTeXFontParser.java	5	84.66%
<!--	Total:	26		-->

Totals
Change from base Build 124:	-0.008%
Covered Lines:	4580
Relevant Lines:	7790

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💛 - Coveralls

[snecklifter]

@davidmoten do we care about this tiny decrease in coverage?

[sylvestre]

No :)