213 attempted solution

I tried to solve #213, the result is compatible with the mathematica result even if some ratios of gamma functions are not simplified properly
At the moment I get
```
>> Integrate[Sin[Pi/2 t^2], {t, 0, z}]
 = 3 FresnelS[z] Gamma[3 / 4] / (4 Gamma[7 / 4])
```
which is correct and equal to the expected result if the ratio of Gamma function is simplified but couldn't get it to do it yet