change help look
Merge pull request #1 from metaplinius/master

squaring intergration
add help
minor changes
smallest change ever :o
move error reporting code to index.php
simplify code
add to conventions
first implementation of fractions..some things should work otherwise
new file which contains usefull functions: GGT
ReduceFraction function
correct wrong results in FractionTasks
Show Result Button
give better fractions (no 1 as denominator)
help for user. how to write the result
better exception handling, when there is no task created
early error handling
disable error reporting for master branch
useless change
Revert "useless change"

This reverts commit ab5f9868c6c7b33a06a1cf3177188f36aa939397.