Resolve "Take out invalid mucus change"

Closes #99

See merge request bloodyhealth/drip!37

Resolve "bug: ignore mucus values in irrelevant phase"

Closes #95

See merge request bloodyhealth/drip!42

Resolve "write function for period length evaluation"

Closes #96

See merge request bloodyhealth/drip!40

Bugfix

See merge request bloodyhealth/drip!39

Resolve "update readme"

Closes #53

See merge request bloodyhealth/drip!36

Adding missing android res files

See merge request bloodyhealth/drip!35

Resolve "implement note"

Closes #70

See merge request bloodyhealth/drip!33

Resolve "implement NFP logic for mucus mode"

Closes #73

See merge request bloodyhealth/drip!20

Resolve "Investigate error message on master"

Closes #92

See merge request bloodyhealth/drip!32

Resolve "show mucus on chart"

Closes #90

See merge request bloodyhealth/drip!30

Adding cervix symptom

See merge request bloodyhealth/drip!31

has 3 properties: opening, firmness and position (which is optional);

Resolve "make symptom views vertically scrollable"

Closes #89

See merge request bloodyhealth/drip!29

Resolve "add local time to temp"

Closes #66

See merge request bloodyhealth/drip!26