Move section 7 files to directory man7

- Amends #262

Signed-off-by: Thomas Lauf <thomas.lauf@tngtech.com>

doc/man1/timew-durations.7.in

@@ -1,59 +0,0 @@
-.TH timew-durations 7 "${PACKAGE_DATE}" "${PACKAGE_STRING}" "User Manuals"
-.
-.SH NAME
-timew-durations \- duration formats supported by Timewarrior
-.
-.SH SYNOPSIS
-.
-.SH DESCRIPTION
-Timewarrior supports the following duration formats based on ISO-8601:
-.
-  'P' [nn 'Y'] [nn 'M'] [nn 'D'] ['T' [nn 'H'] [nn 'M'] [nn 'S']]
-  PnnW
-.br
-Examples:
-  P1Y           1 year
-  P1.5M         1.5 months
-  PT1S          1 second
-  PT4.5H        4.5 hours
-  PT4H30M       4.5 hours
-  P600D         600 days
-  P3W           3 weeks
-  P1Y1DT1H1M1S  1 year and 25 hours, 61 seconds (imprecise term)
-.br
-Note that the year and month terms are imprecise, being defined as 365d and 30d respectively.
-For precision use the other terms.
-.br
-In addition to the standard duration formats, the following are supported:
-.
-  n[.n]<unit>
-.br
-Where the <unit> is one of:
-.
-  annual
-  biannual
-  bimonthly
-  biweekly
-  biyearly
-  daily
-  days, day, d
-  fortnight
-  hours, hour, hrs, hr, h
-  minutes, minute, mins, min
-  monthly, months, month, mnths, mths, mth, mos, mo, m
-  quarterly, quarters, quarter, qrtrs, qtr, q
-  semiannual
-  sennight
-  seconds, second, secs, sec, s
-  weekdays
-  weekly, weeks, week, wks, wk, w
-  yearly, years, year, yrs, yr, y
-.br
-Examples:
-  1hour         60 minutes
-  1.5h          90 minutes
-  3mo           3 months
-  10d           10 days
-.br
-Note that the year, quarter and month terms are imprecise, being defined as 365d, 91d and 30d respectively.
-For precision use the other terms.