deal with calibration files

[aalbino2]

there are some txt file with different formatting. Epiclog_read function is now crashing, but they should be understood:

This is the format:

03/06/2015 15:15:51	900.0	1.390E-06
03/06/2015 15:40:04	850.0	5.996E-07
03/06/2015 16:04:14	800.0	2.440E-07
03/06/2015 16:28:20	750.0	7.936E-08
03/06/2015 16:52:23	700.0	3.220E-08
15/06/2015 11:40:54	855.0	5.181E-07
15/06/2015 12:22:33	843.0	5.386E-07
15/06/2015 14:43:48	891.0	1.189E-06
15/06/2015 17:41:17	893.0	1.287E-06
17/06/2015 11:17:11	816.0	3.070E-07
17/06/2015 16:11:28	850.0	5.962E-07
18/06/2015 11:57:52	992.1	3.767E-06
18/06/2015 12:08:12	892.1	1.370E-06
18/06/2015 12:14:39	892.1	1.267E-06
19/06/2015 16:59:45	768.5	0.000E00
19/06/2015 17:01:26	768.5	9.080E-08
19/06/2015 17:06:53	772.0	1.130E-07
19/06/2015 17:11:05	775.0	1.280E-07
19/06/2015 18:01:36	775.5	9.660E-08
23/06/2015 07:40:15	843.0	5.382E-07
23/06/2015 07:49:29	843.0	5.262E-07
23/06/2015 08:02:03	843.0	5.172E-07
23/06/2015 08:20:01	843.0	5.181E-07
23/06/2015 08:30:39	843.0	5.183E-07
23/06/2015 15:36:46	775.5	1.136E-07
23/06/2015 16:03:16	791.1	1.680E-07
23/06/2015 16:06:56	795.0	1.980E-07
23/06/2015 16:43:27	857.0	6.670E-07
23/06/2015 16:59:57	893.0	1.217E-06
25/06/2015 10:22:38	775.5	1.278E-07
25/06/2015 11:35:05	775.5	1.190E-07
25/06/2015 13:12:51	775.5	1.240E-07
25/06/2015 14:22:54	775.5	1.254E-07
29/06/2015 11:32:55	870.0	1.046E-06
29/06/2015 12:13:02	867.5	8.348E-07

@haltugyildirim