add test scenario
make exception more explicit
update testsuite and raise compatibility to 5.3
run tests for php 5.3-5.6 and hhvm
add travis config
gitignore composer files and phpunit.xml
add composer file
add phpunit.xml.dist file instead of phpunit.xml
lgpl license file and file header added.
decimal multiply and divide are calculating with a fixed scale of 6 n…
…ow. the rounders are rounding with strings now.
extracted trimming of bcmath zeros to method.
Merge branch 'master' of github.com:schnipseljagd/SJDecimal
multiply uses calculated scale again. removed string cast from toStri…
value of unscaled value factory removed. rounders removed. divide use…
…s zero cleaner instead of float cast now.
* calculations added.
* rounder added.
* many tests added and some refactoring stuff done
initial implementation of decimal.